iio: Add a comment to about alphabetical order to Kconfigs and Makefiles

Keeping Makefile and Kconfig entries in alphabetical order usually works better
than just appending new entries at the end, since it reduces the amount of
conflicts. This patch adds a comment to the IIO Kconfig and Makefile files to
document that the entries should be kept in alphabetical order.

Also reorder those  entries which weren't in alphabetical order yet.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/light/Kconfig

@@ -1,6 +1,8 @@
 #
 # Light sensors
 #
+# When adding new entries keep the list in alphabetical order
+
 menu "Light sensors"
 
 config ADJD_S311
@@ -15,6 +17,17 @@ config ADJD_S311
 	 This driver can also be built as a module.  If so, the module
 	 will be called adjd_s311.
 
+config HID_SENSOR_ALS
+	depends on HID_SENSOR_HUB
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	select HID_SENSOR_IIO_COMMON
+	select HID_SENSOR_IIO_TRIGGER
+	tristate "HID ALS"
+	help
+	  Say yes here to build support for the HID SENSOR
+	  Ambient light sensor.
+
 config SENSORS_LM3533
 	tristate "LM3533 ambient light sensor"
 	depends on MFD_LM3533
@@ -52,15 +65,4 @@ config VCNL4000
 	 To compile this driver as a module, choose M here: the
 	 module will be called vcnl4000.
 
-config HID_SENSOR_ALS
-	depends on HID_SENSOR_HUB
-	select IIO_BUFFER
-	select IIO_TRIGGERED_BUFFER
-	select HID_SENSOR_IIO_COMMON
-	select HID_SENSOR_IIO_TRIGGER
-	tristate "HID ALS"
-	help
-	  Say yes here to build support for the HID SENSOR
-	  Ambient light sensor.
-
 endmenu

drivers/iio/light/Makefile

@@ -2,8 +2,9 @@
 # Makefile for IIO Light sensors
 #
 
+# When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_ADJD_S311)		+= adjd_s311.o
+obj-$(CONFIG_HID_SENSOR_ALS)	+= hid-sensor-als.o
 obj-$(CONFIG_SENSORS_LM3533)	+= lm3533-als.o
 obj-$(CONFIG_SENSORS_TSL2563)	+= tsl2563.o
 obj-$(CONFIG_VCNL4000)		+= vcnl4000.o
-obj-$(CONFIG_HID_SENSOR_ALS)	+= hid-sensor-als.o