audio policy: remove glitch when registering dynamic policies

Bypass systematic playback client route evaluation when connecting a
remote submix output device used by a recorder dysnamic policy as no
rerouting is needed in this case.

Bug: 115429872
Bug: 123986127
Test: play music with GPM on Android TV and use the BLE remote
Test: use the BLE remote on Android TV

Change-Id: I285d416f54ff398d23742086fcd8c9f511cd289b