overlay: minimum brightness of 5

Change-Id: I86c3cce0ad248e17d0fdfc28a88c5fd7ed343f72
attempt to fix recovery reboot

Change-Id: Ib75b3d63ee18fc65d2cf05c8dda1cfe9d1f2a665
dalvik: change settings to 1GB tablet mode

Change-Id: I183cffe26035fb41e6446c285c00a6aec3dfdced