address denials when playing protected content.

When playing protected content on manta, surfaceflinger would crash.

  STEPS TO REPRODUCE:
  1. Launch Play Movies & TV
  2. Play any movie and observe

  OBSERVED RESULTS:
  Device reboot while playing movies

  EXPECTED RESULTS:
  No device reboot

Even though this only reproduces on manta, this seems appropriate
for a general policy.

Addresses the following denials:

<5>[   36.066819] type=1400 audit(1389141624.471:9): avc:  denied  { write } for  pid=1855 comm="TimedEventQueue" name="tlcd_sock" dev="mmcblk0p9" ino=627097 scontext=u:r:mediaserver:s0 tcontext=u:object_r:drmserver_socket:s0 tclass=sock_file
<5>[   36.066985] type=1400 audit(1389141624.471:10): avc:  denied  { connectto } for  pid=1855 comm="TimedEventQueue" path="/data/app/tlcd_sock" scontext=u:r:mediaserver:s0 tcontext=u:r:drmserver:s0 tclass=unix_stream_socket
<5>[   41.379708] type=1400 audit(1389141629.786:15): avc:  denied  { connectto } for  pid=120 comm="surfaceflinger" path=006D636461656D6F6E scontext=u:r:surfaceflinger:s0 tcontext=u:r:tee:s0 tclass=unix_stream_socket
<5>[   41.380051] type=1400 audit(1389141629.786:16): avc:  denied  { read write } for  pid=120 comm="surfaceflinger" name="mobicore-user" dev="tmpfs" ino=4117 scontext=u:r:surfaceflinger:s0 tcontext=u:object_r:tee_device:s0 tclass=chr_file
<5>[   41.380209] type=1400 audit(1389141629.786:17): avc:  denied  { open } for  pid=120 comm="surfaceflinger" name="mobicore-user" dev="tmpfs" ino=4117 scontext=u:r:surfaceflinger:s0 tcontext=u:object_r:tee_device:s0 tclass=chr_file
<5>[   41.380779] type=1400 audit(1389141629.786:18): avc:  denied  { ioctl } for  pid=120 comm="surfaceflinger" path="/dev/mobicore-user" dev="tmpfs" ino=4117 scontext=u:r:surfaceflinger:s0 tcontext=u:object_r:tee_device:s0 tclass=chr_file

Change-Id: I20286ec2a6cf0d190a84ad74e88e94468bab9fdb
Bug: 12434847