Add support to mask "hang recovery gte level1" FIRs
Add support to mask "hang recovery gte level1" FIRs

This commit adds support for masking "hang recovery gte level1" FIR
interrupts so that they don't create error logs in the lab by using an
attribute override to set ATTR_SW511706_CHECKSTOP_ON_GTE_LV1_HANG to
2. Setting the attribute to 1 will use the old behavior of making the
errors checkstop the system.

Change-Id: Iac384a9ae2b155e3d6ecd04ea7f5f93e57693eaa
CQ: SW511706
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/130814
Tested-by: FSP CI Jenkins <aa9e4d9ac7cd25905e9c0dd36d4150516e73dd86@us.ibm.com>
Reviewed-by: Joseph J McGill <4a85c6614f9f065f63d8fd57cde15e48af07ea2a@us.ibm.com>
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: Hostboot CI <52521565bd8ea18a2b112942dce4f4220a97c2c8@us.ibm.com>
Reviewed-by: Roland Veloz <768fb49134ab823c765de70e7067d9f65f5d0a3e@us.ibm.com>
Reviewed-by: Daniel M Crowell <912029ca9254ac7b5854e56910561d682e1fa2d0@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/131628
Tested-by: Jenkins OP Build CI <e610bd72261d3c0a48f1e8ae36832ab00774d426@us.ibm.com>
Tested-by: Jenkins Combined Simics CI <8312af3886dfc9bb930f549023677220805b137e@us.ibm.com>
Tested-by: Jenkins OP HW <0eb0fff262f74a65a832afbcc7b153e391c9a3fd@us.ibm.com>
Reviewed-by: Nick Bofferding <fb8db48116bc8a69e29dd8cdb037246f232f4af5@us.ibm.com>

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