Add le audio dynamic switcher mode system property am: d492b78041 Original change: https://android-review.googlesource.com/c/platform/system/libsysprop/+/3500230 Change-Id: Iee62583d621fa9e95d149d94c53a5e2a646915f6 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>