Lockscreen Options : Disable keyguard camera only

Current method of disabling camera does so for entire system, not just
lockscreen. This patchset addresses that.

Change-Id: Iba357214df36ddd8afd49a3e39abcaaba4ec808e
Remove unused string.

Change-Id: I42efede12c7a8e501dcef5e6eed84839ec586716
Merge "Lockscreen Options : Disable keyguard camera only" into cm-10.1
Settings: privacy Guard enhance app logic

This commit changes the following

- do not show apps signed with the plaform certificate at all
  (like settings, systemUI, android system etc)
  IMO the user should trust the android signed apps to be save and this will
  prevent weird behaviours user can get when they activate it on this packages
  all other system apps (like calculator, browser) and all which are not signed with
  android key are not effected.

- to go inline with AOSP disable the checkbox in detail app screen
  for built in apps

cheers

SlimRoms

Change-Id: I12b5522f6e58047173778381fb7290bb1c71bab3
Settings: AF translations

Change-Id: Ia2571ce89ea3d688690d85b9fcc18037a9a8b91d
Merge "Settings: privacy Guard enhance app logic" into cm-10.1
Settings: Update AF translations

Change-Id: Iebf79641d70936b83f8c9ab693ca724b5f18f310
nightly Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1