GitLab

As hashing function is used frequently in converting parsing device
response, add CreateSHA256Hash() to fido_parsing_utils scope.

Bug: 798573
Change-Id: Ifc6ed40db6aca682548a75068701f6c0af7cfdce
Reviewed-on: https://chromium-review.googlesource.com/1024924
Commit-Queue: Jun Choi <hongjunchoi@chromium.org>
Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553785}