[NFC] Move MTE mode settings to a product variable. am: 823cb099ed

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/st/secure_element2/+/23709658

Change-Id: I7663f4f56a31a82bfb9685ef601a8c9d06f6276e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>