Merge "Remove keys from adb_keys after period of inactivity" into qt-dev

    optional string last_key_recevied = 2 [ (android.privacy).dest = DEST_EXPLICIT ];

    optional string user_keys = 3 [ (android.privacy).dest = DEST_LOCAL ];

    optional string system_keys = 4 [ (android.privacy).dest = DEST_LOCAL ];

    optional string keystore = 5 [ (android.privacy).dest = DEST_LOCAL ];

}