Add METADATA to libbackup: Apache2=NOTICE am: 495ccb903e am: 3559a596e4 am: 17e308f8a6 am: 327626faf9 am: dba2b0a0f9 am: af61fbc2e4

Change-Id: Ifd2c5fc7162295abf1db8312c2e00ba911a756fb