Merge "Audio r_submix : Handle the usecase when no data is available to read."...

Merge "Audio r_submix : Handle the usecase when no data is available to read." into main am: 0bc307a5 am: 830e95f8

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2686486



Change-Id: I416ac9712401cf403bd4698d5a34c646945bdc01
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>