Add aah metadata service to whitelist DO NOT MERGE

Temporary solution for b/7262633.  We are using binder service for IPC between
mediaserver and client app for sending synchronized beat tempo.  The change
will never be merged back to upstream.  Will replace it with a new IPC
mechanism later.

Change-Id: Ic06546a0085e401f49b65e0327247fcce1df681f
1 file changed