audio: Fix some VTS issues on real devices

1. Skip testing of stream I/O on certain types of mix ports.

2. Skip testing of connection of BT SCO device.

Bug: 300735639
Bug: 326888356
Bug: 328010709
Bug: 331516432
Test: atest VtsHalAudioCoreTargetTest
Change-Id: I9b8bbf2014e223375c8f8400ff2af32268803706