audio policy: fix configurable engine and dynamic policies take 2

Exclude remote submix devices with non "0" (legacy) addresses from devices
returned to Engine by AudioPolicyManagerObserver::getAvailableOutputDevices()
and AudioPolicyManagerObserver::getAvailableInputDevices()

Bug: 129144725
Test: make
Change-Id: If1ce89acb2a35a6bede195f520b4047f92b928bd
7 files changed