Support for EX VPD instance rings.
Support for EX VPD instance rings.

Change-Id: Ibcc1337f0a2039e378b9fe916058e272568986bd
Original-Change-Id: I43090f95b6ee2729549d962c1af6827d59b4277c
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/30458
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: PPE CI <dc75934ba5befb9221434e67a247b93aec46b36b@us.ibm.com>
Tested-by: Hostboot CI <52521565bd8ea18a2b112942dce4f4220a97c2c8@us.ibm.com>
Dev-Ready: Matt K. Light <19ba8ed73a0b3c376c81fced381f1ac0f483b7c2@us.ibm.com>
Reviewed-by: RANGANATHPRASAD G. BRAHMASAMUDRA <95a9682e5bdc1ccf6e82d516bbb3db21526dc713@in.ibm.com>
Reviewed-by: Martin Gloff <df0a4963746ae04ab678d064fccc7ee68adfd751@us.ibm.com>
Reviewed-by: Benjamin Gass <d33fb9b956fd4e7c201de67e681adf83a89c45b0@us.ibm.com>
Reviewed-by: Joseph J. McGill <4a85c6614f9f065f63d8fd57cde15e48af07ea2a@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot