restorecon /data/nfc, /data/media, and /data/misc/audio.

Change-Id: Icb9c601b664a329d8b504ee167844141c6f47a75
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Remove /data/app/sensor_ctl_socket on boot.

Unix domain sockets need to be unlinked and re-created on each
reboot regardless, and removing the old socket left by a prior boot
ensures that we do not have a dead socket file in the wrong security
context, thereby yielding denials and preventing proper removal
and re-creation by the sensors service.

Change-Id: Ibe15768d9ae6955a0358568b11804f0267a1680e
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>