Add media services to ephemeral_app

Test: denials go away
Change-Id: I103cf3ad8d86b461bcba8edce02f6202fd2bcbe8
diff --git a/private/untrusted_app_all.te b/private/untrusted_app_all.te
index 993b3d0..73aa79e 100644
--- a/private/untrusted_app_all.te
+++ b/private/untrusted_app_all.te
@@ -1,7 +1,8 @@
 ###
 ### Untrusted_app_all.
 ###
-### This file defines the rules shared by all untrusted app domains.
+### This file defines the rules shared by all untrusted app domains except
+### ephemeral apps.
 ### Apps are labeled based on mac_permissions.xml (maps signer and
 ### optionally package name to seinfo value) and seapp_contexts (maps UID
 ### and optionally seinfo value to domain for process and type for data