Merge "r_submix: keep the signed value for offset calculation in AIDL implementation" into main am: bc2537e41f am: 2f8e3077fe am: 1b44653d3b am: 07fc80847f

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2721915

Change-Id: Iaced436b3fb4398a4540b530c6f93dbf3eb1a965
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>