[NFC] Move MTE mode settings to a product variable. am: e073622c26 am: 99c19493f7 am: 1831092f8c

Original change: https://android-review.googlesource.com/c/platform/hardware/st/secure_element/+/2622660

Change-Id: I4e4155caf011d6f0e5f56554724b6e7a85a84667
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>