Trivial: minor follow-up to redfish fix
Trivial: minor follow-up to redfish fix

Just fixing two incidents of received being incorrectly spelled
and adjusting the attribute error message slightly, in part
because it is an entire error, and not just a single missing
attribute.

Change-Id: Ia59f774c9340e3a6fa63418afedf12098c709052

openstack/ironic,openstack/ironic