Manifest: Track our own external_sepolicies

Change-Id: Iaaab84f6bb3da753b8225a7f0f8f61b4f96861e9
Signed-off-by: Josue Rivera <prbassplayer@gmail.com>
bump to new AOSP r5 tag

Change-Id: I3b60d7be829d82f6c59b9728634d90a627a8a3e7
update to android-5.0.0_r6 tag

Change-Id: Ia74eb20b11ac18a3a6b947edfd5957a9833c6c09
Merge remote-tracking branch 'sr/lp5.0' into lp5.0