media: Kconfig: update the MEDIA_SUPPORT help message

There are more things than just cameras and TV devices on
media. Update the help message accordingly.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/Kconfig

@@ -18,8 +18,10 @@ menuconfig MEDIA_SUPPORT
 	tristate "Multimedia support"
 	depends on HAS_IOMEM
 	help
-	  If you want to use Webcams, Video grabber devices and/or TV devices
-	  enable this option and other options below.
+	  If you want to use media devices, including Webcams, Video grabber
+	  devices and/or TV devices, V4L2 codecs, etc, enable this option
+	  and other options below.
+
 	  Additional info and docs are available on the web at
 	  <https://linuxtv.org>