Settings: Remove Wallpaper selection from Display

Let the launcher handle wallpaper selection.

Change-Id: I7f0eb20a5bc01d82fdb98905524b9743fee447c6
Signed-off-by: Roman Birg <roman@cyngn.com>
Add volume key on rotation to display settings
Camera button support 1/2

ported from: https://github.com/CyanogenMod/android_packages_apps_Settings/commit/c933e9205f5bef528ee09433a078cd8e626d9424#diff-5ef8d74198f3dd4a8c550fcee1e21d26R232

credit: CM

Conflicts:
	res/values/crom_strings.xml