switch to full_phone

This will bring back live wallpapers, ringtones, etc that
some might consider 'bloat'.

Change-Id: I6af7fb46a433bac5cde624030440a1721cf23c9d
use less agressive max background process limit

Change-Id: I1ed634f6baed01dd6540a25e5e8a31ae3a089818
more optimizations

Change-Id: I9ef42acca527ae041c9f1bbdcd30d271f731fe29
simplify copying prebuilt

Change-Id: Ic6eea43253c0c33e5d52e4709b770a15f02470bb
cleanup

Change-Id: If0cfffd11400f64367a9aeae73c1886b19431275