huashan: we have our own camera wrapper, don't build generic

Change-Id: I34e7313e1ce06c0d367d4cd16a50214d7809c23f
huashan: overlay: move packages/Camera to packages/Gallery2

Change-Id: I1b760ece868eecffbff75f360613a14e19f07d40
Import init.superuser.rc

Lord only knows why it's not included in the final boot.img