treewide: replace '---help---' in Kconfig files with 'help'

Since commit 84af7a6194 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

  a) 4 spaces + '---help---'
  b) 7 spaces + '---help---'
  c) 8 spaces + '---help---'
  d) 1 space + 1 tab + '---help---'
  e) 1 tab + '---help---'    (correct indentation)
  f) 1 tab + 1 space + '---help---'
  g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

  $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

drivers/gpu/drm/bridge/Kconfig

@@ -62,7 +62,7 @@ config DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW
 	depends on OF
 	select DRM_KMS_HELPER
 	select DRM_PANEL
-	---help---
+	help
 	  This is a driver for the display bridges of
 	  GE B850v3 that convert dual channel LVDS
 	  to DP++. This is used with the i.MX6 imx-ldb
@@ -89,7 +89,7 @@ config DRM_NXP_PTN3460
 	depends on OF
 	select DRM_KMS_HELPER
 	select DRM_PANEL
-	---help---
+	help
 	  NXP PTN3460 eDP-LVDS bridge chip driver.
 
 config DRM_PARADE_PS8622
@@ -98,7 +98,7 @@ config DRM_PARADE_PS8622
 	select DRM_PANEL
 	select DRM_KMS_HELPER
 	select BACKLIGHT_CLASS_DEVICE
-	---help---
+	help
 	  Parade eDP-LVDS bridge chip driver.
 
 config DRM_PARADE_PS8640
@@ -128,13 +128,13 @@ config DRM_SII902X
 	select REGMAP_I2C
 	select I2C_MUX
 	select SND_SOC_HDMI_CODEC if SND_SOC
-	---help---
+	help
 	  Silicon Image sii902x bridge chip driver.
 
 config DRM_SII9234
 	tristate "Silicon Image SII9234 HDMI/MHL bridge"
 	depends on OF
-	---help---
+	help
 	  Say Y here if you want support for the MHL interface.
 	  It is an I2C driver, that detects connection of MHL bridge
 	  and starts encapsulation of HDMI signal.
@@ -150,7 +150,7 @@ config DRM_SIMPLE_BRIDGE
 config DRM_THINE_THC63LVD1024
 	tristate "Thine THC63LVD1024 LVDS decoder bridge"
 	depends on OF
-	---help---
+	help
 	  Thine THC63LVD1024 LVDS/parallel converter driver.
 
 config DRM_TOSHIBA_TC358764
@@ -168,7 +168,7 @@ config DRM_TOSHIBA_TC358767
 	select DRM_KMS_HELPER
 	select REGMAP_I2C
 	select DRM_PANEL
-	---help---
+	help
 	  Toshiba TC358767 eDP bridge chip driver.
 
 config DRM_TOSHIBA_TC358768
@@ -185,7 +185,7 @@ config DRM_TI_TFP410
 	tristate "TI TFP410 DVI/HDMI bridge"
 	depends on OF
 	select DRM_KMS_HELPER
-	---help---
+	help
 	  Texas Instruments TFP410 DVI/HDMI Transmitter driver
 
 config DRM_TI_SN65DSI86

drivers/gpu/drm/omapdrm/dss/Kconfig

@@ -71,7 +71,7 @@ config OMAP4_DSS_HDMI_CEC
 	depends on OMAP4_DSS_HDMI
 	select CEC_CORE
 	default y
-	---help---
+	help
 	  When selected the HDMI transmitter will support the CEC feature.
 
 config OMAP5_DSS_HDMI