pollux-common: set hw overlay

Change-Id: I623c575f8eface79ad7a71e0beadd2bc5bce726f
pollux-common: move brightness overlay on device

Change-Id: I69b63f8b550eeb6b7795859f4d65ce5543c1fc7e
Merge pull request #2 from CyanogenMod/cm-10.2

merging