BroadcastQueue send message for CMM in scan only mode

Messages received for a CMM in ScanOnlyMode should also be sent
immediately since it could take longer for ClientModeImpl to stop than
the CMM to change state to ScanOnlyMode.

Bug: 192296434
Test: atest ClientModeManagerBroadcastQueueTest
Change-Id: Ia18aef1e0bffdf6d56bf887eaf28ac074ce20bef
2 files changed