Enablement of support for Stumped and Cmsk rings
Enablement of support for Stumped and Cmsk rings

- Currently its enabled for ec_func ring only
- Introduced new function read_scan_data_care_ring()
  to read scan data & care bits for rings
- Updated scan address for cmsk ring
- Both ec_func's stumped and cmsk rs4 rings treated as
  non-overrides

Change-Id: I7d9121ad28b39f1782d6cacbf728ff6ce7498034
Original-Change-Id: Id684ecb68d987f6ecd3f2e0476ab9aa2adce338f
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/38788
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: PPE CI <dc75934ba5befb9221434e67a247b93aec46b36b@us.ibm.com>
Tested-by: Hostboot CI <52521565bd8ea18a2b112942dce4f4220a97c2c8@us.ibm.com>
Reviewed-by: Claus M. Olsen <2da381e13dc4aeb07a557ddfc89fbb05265c54a4@us.ibm.com>
Reviewed-by: Prem Shanker Jha <3a412e33a2e075117b5262bcf2504c145441bf2a@in.ibm.com>
Reviewed-by: Jennifer A. Stofer <ab93eca12e43608f33daa16a67357cd7b7e867ab@us.ibm.com>

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