Fix wrong compute driver name for Ironic

Change-Id: Ia29e019065476f9884ab3fce4e26fe66700fb02d
Increase in the full path to mkfs.xfs(/sbin/mkfs.xfs).

Xfsprogs package has been installed. This is the cause of the error stack does not have
permission to perform mkfs.xfs command rather mkfs.xfs command in /sbin/
path, stack in order to perform mkfs.xfs must add the full path or use
the sudo command mode.

Fixed bug #1292466

Change-Id: I488133539331b4a0034a2afb4e75665904754245
Merge "Increase in the full path to mkfs.xfs(/sbin/mkfs.xfs)."
Merge "Fix wrong compute driver name for Ironic"