Merge "Add demux to mFrontendTests" into android14-tests-dev am: f91c15c69e

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2886668

Change-Id: If9d3a24500aa982e8347ead1ad4c06e19ed1d59f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>