[automerger skipped] Move MTE mode settings to a product variable. am: 5c8434d1 -s ours

am skip reason: Merged-In I5954fde05256e00a8e01c114ad522f50ed0cfa9f with SHA-1 80b53b8c is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/23623917



Change-Id: I929f06de207b8aa2306c860ab54cf4552a57c45a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>