Proprietary side needs to exist
init: add permissions for key backlight settings

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I414131b2cb6c29f3a5ac14e76e9ab0369517fc25
Merge git://github.com/LegacyXperia/android_device_semc_mogami-common into jb-4.2