Don't animate the circle battery meter when battery is fully charged

Rotating a full circle is unnecessary, no need to redraw the battery
meter every 50ms

Change-Id: Ibc7232ccd296ddbcf7c920aa6d8f01baa92a06d7
Merge "Don't animate the circle battery meter when battery is fully charged" into cm-11.0
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_frameworks_base into cm-11.0