Allow bluetooth surfaceflinger access.

Address the following denial:
02-12 07:51:42.702: E/SELinux(158): avc:  denied  { find } for service=SurfaceFlinger scontext=u:r:bluetooth:s0 tcontext=u:object_r:surfaceflinger_service:s0 tclass=service_manager

which occurs when the remote service starts up.
02-12 07:51:42.702: E/ServiceManager(158): find_service('SurfaceFlinger') uid=1002 - PERMISSION DENIED
02-12 07:51:42.702: I/ServiceManager(2827): Waiting for service SurfaceFlinger...
02-12 07:51:42.959: E/ActivityManager(469): ANR in com.google.android.remote.tv.services
02-12 07:51:42.959: E/ActivityManager(469): PID: 2827
02-12 07:51:42.959: E/ActivityManager(469): Reason: executing service com.google.android.tv.remote/.RemoteService

Bug: 19268019
Change-Id: I2d415c2ea2f70cf71851147253cf6e1906fd0940
diff --git a/bluetooth.te b/bluetooth.te
index 305d9df..35a4774 100644
--- a/bluetooth.te
+++ b/bluetooth.te
@@ -53,6 +53,7 @@
 allow bluetooth keystore_service:service_manager find;
 allow bluetooth mediaserver_service:service_manager find;
 allow bluetooth radio_service:service_manager find;
+allow bluetooth surfaceflinger_service:service_manager find;
 allow bluetooth system_server_service:service_manager find;
 allow bluetooth tmp_system_server_service:service_manager find;