Open Stack

I would like to request a FFE for this RFE 
https://storyboard.openstack.org/#!/story/1749057

The implementation should be complete and is currently passing CI, but 
does need more reviews. I'd also like to test this locally ideally.

pros
---
- Improves ppc64le support

cons
---
- Bumps ironic-lib version for both IPA and Ironic

risk
---
- There are other deployment methods for ppc64le, including wholedisk 
and netboot. However, this feature is desired to improve parity between 
x86 and ppc64le for tripleo. The feature should not affect any current 
working deployment methods, but please review closely.

Please let me know if you'd like more detail on this or have any 
questions! Thanks!

-Mike  Turek