Adding flag android.os.update_engine_api to trunk_staging.

This change was automatically created by advancing the Gantry workflow at:
https://releasetracker.partner.android.com/changes/188580a000001?build_unique_id=android_platform_art_mainline
Do not edit this file manually or revert this change - use the Gantry workflow to manage the state of this flag.

Bug: 377557749
Flag: android.os.update_engine_api
Ignore-AOSP-First: AConfig change for future AOSP release
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:3c8ec477fbd3effd00dc039b6f5522b6acbb10b7)
Merged-In: Ifed1f2b9fc8241935ff650cc06c3a0b60052cca1
Change-Id: Ifed1f2b9fc8241935ff650cc06c3a0b60052cca1
1 file changed