Correct baremetal/ironic consume_from_instance...

In 2bc74e66d90b6fae3c5ca8f79f99e75169da644f we recently changed
the HostState.consume_from_instance method parameters to include a
context. This patch updates the relevate baremetal/ironic host state
classes to do likewise.

This fixes a critical TypeError that occurs when trying to use
Ironic or Nova Baremetal otherwise.

Change-Id: I46eebce19603cb4c4a934b1647ff6433d75799ad
Closes-bug: #1369151
Merge "Correct baremetal/ironic consume_from_instance..."