allow mediaserver to use appdomain_tmpfs

mediaserver and mediaextractor both need this.

bug: 145607042
bug: 145355521
test: run modified android.media.cts.HeifWriterTest
to use the new android.Os.memfd_create, the test
should pass; shouldn't fail in verification step
due to MediaMetadataRetriever can't access the memfd.

Change-Id: I47dabb9d98c77b647521884c7b5fadf04eae3b41
1 file changed