tree 81611b508312e5ee0e255aa2bf6d93abfcc714d7
parent 5fa7e2fa2cfdd17d7cd24760ec3b968dfe110635
author xunchang <xunchang@google.com> 1550614488 -0800
committer xunchang <xunchang@google.com> 1550705529 -0800

OTA: Add an option to dump the metadata in ota package

Add a flag to write a copy of the metadata to a separate file. Therefore,
users can read the post build fingerprint without extracting the OTA package.

Bug: 124783265
Test: Check the dumped metadata file after generate A/B and non-A/B OTA.
Change-Id: I8918aec87bb81906ef0a7eee774178e9f689d91d