SystemUI: FR Translation

Change-Id: Id1b6943dea0cb45e855db655227536cbf1158d25
Core: FR Translation

Change-Id: Ifced4dfcfc83cf08afdbb47913c2c12c3adbb6ea
Keyguard: it translation string add

Added a missing string for the discharging percentage
in the lockscreen.

Change-Id: I433ea096859ebb4714a5773564d5f35e45e65077