Update display-legacy and media-legacy
this is based on arcos github just the nessaccery changes for android 4.3/gcc4.7

Change-Id: Ia766c245d29493ddf044e6c3b13c30c9fb85d93c
Track Xplodwild Focal repositories

Change-Id: Ie0ad2de9061a5ef87975956ebb4d7ff58b6a264e
Merge to PAC manifest