Merge "audio: Fix streamCommon nullptr check in VTS" am: 7c2b5ed7a1 am: 9e6ab24989 am: f39ccc440d

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2363001

Change-Id: Ibdfdfc2c8068986d4a0428234c74b3f37391d198
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>