device: samsung: manta: Add permission for mobicore

Set the permission for /dev/mobicore-user and lock down
/dev/mobicore to only be accessible by the mobicore daemon

Change-Id: If047798652ad816b219339b4ae41b74728aa792b
Signed-off-by: Jihyun Kim <jihyun86.kim@samsung.com>
diff --git a/ueventd.manta.rc b/ueventd.manta.rc
index 9cf8deb..0b6974e 100755
--- a/ueventd.manta.rc
+++ b/ueventd.manta.rc
@@ -95,7 +95,8 @@
 /dev/video12              0660   media      media
 
 # mobicore DRM
-/dev/mobicore             0660   drmrpc     drmrpc
+/dev/mobicore             0600   drmrpc     drmrpc
+/dev/mobicore-user        0660   drm        drmrpc
 
 # secure mem driver
 /dev/s5p-smem             0660   drm        drmrpc