Add flag com.android.graphics.surfaceflinger.flags.unify_refresh_rate_callbacks to trunk_staging. This change was automatically created by advancing the Gantry workflow at: https://releasetracker.partner.android.com/changes/08msn2q000001?build_unique_id=ComAndroidGraphicsSurfaceflingerFlagsUnifyRefreshRateCallbacksLaunch-platform Do not edit this file manually or revert this change - use the Gantry workflow to manage the state of this flag. Bug: 399482301 Flag: com.android.graphics.surfaceflinger.flags.unify_refresh_rate_callbacks Ignore-AOSP-First: AConfig change for future AOSP release Change-Id: I3fd9220762c0c6c12be91747cc3168968b9767c6