zenfone6: Fix mediaprovider denial

Change-Id: I09af54fe85ed76e6f204145e311a8b6533df9acb
diff --git a/sepolicy/private/mediaprovider.te b/sepolicy/private/mediaprovider.te
new file mode 100644
index 0000000..c64bdfd
--- /dev/null
+++ b/sepolicy/private/mediaprovider.te
@@ -0,0 +1 @@
+allow mediaprovider mnt_media_rw_file:dir getattr;
\ No newline at end of file