update sepolicy for gralloc HAL

the list to update was determined by looking
at who currently has access to surfaceflinger
for ipc and FD use.

Test: try some media stuff
Bug: 36333314
Change-Id: I474d0c44f8cb3868aad7a64e5a3640cf212d264d
diff --git a/private/mediadrmserver.te b/private/mediadrmserver.te
index def8759..4e511a8 100644
--- a/private/mediadrmserver.te
+++ b/private/mediadrmserver.te
@@ -1,3 +1,8 @@
 typeattribute mediadrmserver coredomain;
 
 init_daemon_domain(mediadrmserver)
+
+# allocate and use graphic buffers
+hal_client_domain(mediadrmserver, hal_graphics_allocator)
+auditallow mediadrmserver hal_graphics_allocator_server:binder call;
+