No need to update devices when they are the same as original ones.

The audio framework will call create_audio_patch to update the new
input/output devices. When the new devices are the same as the original
ones, there is no need to update.

Bug: 188843084
Test: play audio via USB
Change-Id: I4bf2a51a0e88797f2d78513962e18009c59f46c3
1 file changed