Updated openstack/openstack
Project: openstack/nova  13bf6c2fc18ce86c6a9f99ae10b511c4427ad92a
null
Retry on deadlock in instance_metadata_update

THe instance_metadata_update() method in the sqlalchemy db API may hit a
DBDeadlock, as shown in the bug report.  Apply the necessary decorator
that will have the method retry in that case.

Change-Id: Ice3f13857ba8f4ee1d1d2dc06cef293e6d17daca
Closes-bug: #1262154