Merge "recovery: Dump the signature in the zip package." into nyc-dev am: 34ca089 am: 2f9be55
am: a28617a

* commit 'a28617a2dccfeda98fc3449b94c270cedd84aa7b':

Change-Id: I06dcb597c0bdd3013c54f4bb1a6bbbb6ff0656f2