Merge "Use String8/16 c_str [audio]" into main am: ff0aae4132 am: 74388d64a3 am: 812b6651e5 am: 8766aec24d am: ac66dd8cbf

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2723315

Change-Id: Ia4885baa29a69a2b15b85a2c8ae8fc422131e4a0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>