Updates for CM12

- Half a ton of sepolicy updates. Permissive mode is gone, all things must
  be declared!
   - Add contexts to init service blocks
   - Add context to firmware partition
- wpa_supplicant doesn't have control sockets anymore. It's also not
  part of the default PRODUCT_PACKAGES and must be manually declared (see
  gproj-common)

Change-Id: Ibd3ce9b141f51327186c90dc04a3ef4856970939
Disable caf audio for now

Change-Id: I212248fc9cd0d4d4de95ec692ccc42a8a712fc26