audioflinger: obtain the real package name

This fix the bug introduced by the OP_RECORD_AUDIO that should check for apps
which uses a different process name. AppOps needs the real package name instead
of the process name.

Change-Id: Iedd6022fab1efab47a29da7bd07e922dcdeb294c
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>