Reserve AID_AUDIT

AID_AUDIT will be used for an audit daemon for gathering
and controlling the Linux audit subsystem.

Change-Id: I95d597524b5547a60f3a59f692b4b0a6df0a9645

Conflicts:

	include/private/android_filesystem_config.h
Explicitly add the theme manager's AID to fs config

SELinux failed to set the theme manager's context since the
app has a fixed non-user ID, and it didn't map to a pseudo-username.

Change-Id: I287dc0dd02abc164fe22e14c9f3f505c3dcb938d