Add flag android.media.codec.app_codec_usage_metrics to trunk_staging. This change was automatically created by advancing the Gantry workflow at: https://releasetracker.partner.android.com/changes/fp5vrsq000001?build_unique_id=AndroidMediaCodecAppCodecUsageMetricsLaunch-platform Do not edit this file manually or revert this change - use the Gantry workflow to manage the state of this flag. Bug: 406819941 Flag: android.media.codec.app_codec_usage_metrics Ignore-AOSP-First: AConfig change for future AOSP release Change-Id: Id7d29d169713de5da0847d86265c7b1d5696fa92