[media] docs-rst: add tabularcolumns to all tables

LaTeX doesn't handle too well auto-width on tables, and ReST
markup requires an special tag to give it the needed hints.

As we're using A4 paper, we have 17cm of useful spaces. As
most media tables have widths, let's use it to generate the
needed via the following perl script:

my ($line_size, $table_header, $has_cols) = (17.5, 0, 0);
my $out;
my $header = "";
my @widths = ();
sub round { $_[0] > 0 ? int($_[0] + .5) : -int(-$_[0] + .5) }
while (<>) {
	if (!$table_header) {
		$has_cols = 1 if (m/..\s+tabularcolumns::/);
		if (m/..\s+flat-table::/) {
			$table_header = 1;
			$header = $_;
			next;
		}
		$out .= $_;
		next;
	}
	$header .= $_;
	@widths = split(/ /, $1) if (m/:widths:\s+(.*)/);
	if (m/^\n$/) {
		if (!$has_cols && @widths) {
			my ($tot, $t, $i) = (0, 0, 0);
			foreach my $v(@widths) { $tot += $v; };
			$out .= ".. tabularcolumns:: |";
			for ($i = 0; $i < scalar @widths - 1; $i++) {
				my $v = $widths[$i];
				my $w = round(10 * ($v * $line_size) / $tot) / 10;
				$out .= sprintf "p{%.1fcm}|", $w;
				$t += $w;
			}
			my $w = $line_size - $t;
			$out .= sprintf "p{%.1fcm}|\n\n", $w;
		}
		$out .= $header;
		$table_header = 0;
		$has_cols = 0;
		$header = "";
		@widths = ();
	}
}
print $out;

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/uapi/cec/cec-ioc-adap-g-caps.rst

@@ -44,6 +44,8 @@ returns the information to the application. The ioctl never fails.
 
 .. _cec-caps:
 
+.. tabularcolumns:: |p{1.0cm}|p{1.0cm}|p{15.5cm}|
+
 .. flat-table:: struct cec_caps
     :header-rows:  0
     :stub-columns: 0
@@ -89,6 +91,8 @@ returns the information to the application. The ioctl never fails.
 
 .. _cec-capabilities:
 
+.. tabularcolumns:: |p{4.4cm}|p{1.5cm}|p{11.6cm}|
+
 .. flat-table:: CEC Capabilities Flags
     :header-rows:  0
     :stub-columns: 0

Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst

@@ -69,6 +69,8 @@ logical address types are already defined will return with error ``EBUSY``.
 
 .. _cec-log-addrs:
 
+.. tabularcolumns:: |p{1.0cm}|p{1.0cm}|p{15.5cm}|
+
 .. flat-table:: struct cec_log_addrs
     :header-rows:  0
     :stub-columns: 0
@@ -205,6 +207,8 @@ logical address types are already defined will return with error ``EBUSY``.
 
 .. _cec-versions:
 
+.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
+
 .. flat-table:: CEC Versions
     :header-rows:  0
     :stub-columns: 0
@@ -239,6 +243,8 @@ logical address types are already defined will return with error ``EBUSY``.
 
 .. _cec-prim-dev-types:
 
+.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
+
 .. flat-table:: CEC Primary Device Types
     :header-rows:  0
     :stub-columns: 0
@@ -305,6 +311,8 @@ logical address types are already defined will return with error ``EBUSY``.
 
 .. _cec-log-addr-types:
 
+.. tabularcolumns:: |p{2.6cm}|p{0.9cm}|p{14.0cm}|
+
 .. flat-table:: CEC Logical Address Types
     :header-rows:  0
     :stub-columns: 0
@@ -373,6 +381,8 @@ logical address types are already defined will return with error ``EBUSY``.
 
 .. _cec-all-dev-types-flags:
 
+.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
+
 .. flat-table:: CEC All Device Types Flags
     :header-rows:  0
     :stub-columns: 0

Documentation/media/uapi/cec/cec-ioc-dqevent.rst

@@ -54,6 +54,8 @@ it is guaranteed that the state did change in between the two events.
 
 .. _cec-event-state-change_s:
 
+.. tabularcolumns:: |p{1.8cm}|p{1.8cm}|p{13.9cm}|
+
 .. flat-table:: struct cec_event_state_change
     :header-rows:  0
     :stub-columns: 0
@@ -80,6 +82,8 @@ it is guaranteed that the state did change in between the two events.
 
 .. _cec-event-lost-msgs_s:
 
+.. tabularcolumns:: |p{1.0cm}|p{1.0cm}|p{15.5cm}|
+
 .. flat-table:: struct cec_event_lost_msgs
     :header-rows:  0
     :stub-columns: 0
@@ -106,6 +110,8 @@ it is guaranteed that the state did change in between the two events.
 
 .. _cec-event:
 
+.. tabularcolumns:: |p{1.6cm}|p{1.6cm}|p{1.6cm}|p{12.7cm}|
+
 .. flat-table:: struct cec_event
     :header-rows:  0
     :stub-columns: 0
@@ -177,6 +183,8 @@ it is guaranteed that the state did change in between the two events.
 
 .. _cec-events:
 
+.. tabularcolumns:: |p{2.6cm}|p{0.9cm}|p{14.0cm}|
+
 .. flat-table:: CEC Events Types
     :header-rows:  0
     :stub-columns: 0
@@ -206,6 +214,8 @@ it is guaranteed that the state did change in between the two events.
 
 .. _cec-event-flags:
 
+.. tabularcolumns:: |p{4.4cm}|p{1.5cm}|p{11.6cm}|
+
 .. flat-table:: CEC Event Flags
     :header-rows:  0
     :stub-columns: 0

Documentation/media/uapi/cec/cec-ioc-g-mode.rst

@@ -76,6 +76,8 @@ Available initiator modes are:
 
 .. _cec-mode-initiator_e:
 
+.. tabularcolumns:: |p{2.6cm}|p{0.9cm}|p{14.0cm}|
+
 .. flat-table:: Initiator Modes
     :header-rows:  0
     :stub-columns: 0
@@ -119,6 +121,8 @@ Available follower modes are:
 
 .. _cec-mode-follower_e:
 
+.. tabularcolumns:: |p{2.6cm}|p{0.9cm}|p{14.0cm}|
+
 .. flat-table:: Follower Modes
     :header-rows:  0
     :stub-columns: 0
@@ -211,6 +215,8 @@ Core message processing details:
 
 .. _cec-core-processing:
 
+.. tabularcolumns:: |p{1.9cm}|p{15.6cm}|
+
 .. flat-table:: Core Message Processing
     :header-rows:  0
     :stub-columns: 0

Documentation/media/uapi/cec/cec-ioc-receive.rst

@@ -75,6 +75,8 @@ result.
 
 .. _cec-msg:
 
+.. tabularcolumns:: |p{1.0cm}|p{1.0cm}|p{15.5cm}|
+
 .. flat-table:: struct cec_msg
     :header-rows:  0
     :stub-columns: 0
@@ -252,6 +254,8 @@ result.
 
 .. _cec-tx-status:
 
+.. tabularcolumns:: |p{2.6cm}|p{0.9cm}|p{14.0cm}|
+
 .. flat-table:: CEC Transmit Status
     :header-rows:  0
     :stub-columns: 0
@@ -320,6 +324,8 @@ result.
 
 .. _cec-rx-status:
 
+.. tabularcolumns:: |p{2.6cm}|p{0.9cm}|p{14.0cm}|
+
 .. flat-table:: CEC Receive Status
     :header-rows:  0
     :stub-columns: 0