audio: create audio patch when the highest input soruce change

Bug: 193361443
Test: Audio capture
1. Start MIC source on primary input
2. Start CAMCORDER source on primary input
3. Stop CAMCORDER source on primary input
4. Stop MIC source on primary input
Signed-off-by: Carter Hsu <carterhsu@google.com>
Change-Id: Id6adcd4deb1e62e6ed9275d3a6cf7f7656da6946
1 file changed