Merge "Initialize mError for AudioCapabilities." into main am: eec973f9c1 am: 303cb78b51

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3199233

Change-Id: Icb8f40a8355249f59695f5a52e23599052ce9b58
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>