[automerger skipped] Merge "Implemented CREATE_USER and REMOVE_USER on VHAL reference implementation." into rvc-dev am: d7940ccf2f -s ours am: 0c448001a3 -s ours am: 190fd86742

Original change: undetermined

Change-Id: Ic3592ec56b95a820a37cfa37c60d03024eb2dc61