Merge "Rename UPDATE_AB_PARTITIONS to AB_OTA_PARTITIONS." am: c82b873b9b am: 7410ed86c6
am: 47d31960d5

* commit '47d31960d5ea013e049ed3548c7dd5445caae6a6':
  Rename UPDATE_AB_PARTITIONS to AB_OTA_PARTITIONS.