Settings: Add translatable false tag

Added translatable false tag to auto_brightness_brightness_format
and removed it in any other languages

Change-Id: Ia0b00209186baa5eccb2f9882f5ba97240de9aa8
Settings : FR translation

Patch set 2 : rebase, correction
Patch set 3 : correction

Change-Id: I1a1a3541f5e9e1a989df20666b56930d8c6708ce
Merge remote-tracking branch 'cyanogen/cm-10.1' into cm-10.1