Merge "Switch from SHA-1 to SHA-256 for new signing key certs." am: 574ad2ec86 am: b2e8ea51a9 am: 0684d848fb
am: eb66c53367

* commit 'eb66c53367ef381b88149c1e769435730ae78abc':
  Switch from SHA-1 to SHA-256 for new signing key certs.

Change-Id: I3d86ae39ffbdc496c537b3789c170f7a8ee0cb13