Add engine configuration to the AIDL Audio HAL interface. am: db11b2db44 am: 9e79190b8f am: 6915317e3f

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2215431

Change-Id: I91dce2ae9ab4a5d84787188a0778ad87b768334a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>