galaxys2: libril: uus is absent

Change-Id: Id52cec452588bc629b6ccbda51932678f2f8aeab
Merged with branch 'cm-10.1' of git://github.com/CyanogenMod/android_device_samsung_galaxys2-common
clean up/simplified common device by moving several previous changes into the specific device

Change-Id: I723d899f7716566f50f0bbdeef2a8239cb293ba6