Merge "Add demux to mFrontendTests" into android14-tests-dev am: f91c15c69e am: e1790b4419 am: 9105c19a85

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

Change-Id: I42764711cf8e23670671a6ac58058360d4ce0a29
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>