[automerger skipped] [NFC] Move MTE mode settings to a product variable. am: ea2aa5face -s ours

am skip reason: Merged-In Ia713937269b94c92656f8c7f821c4e8d744c2d99 with SHA-1 1e2ea562cf is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/mtpd/+/23716162

Change-Id: I73fe4ee5c46e3ecc5ddb3b37495a4ad4991423a1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>