PRD: Fix core checkstop masking

Change-Id: Id47712240806db15d35217d9997af15448db2889
CQ: SW432632
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/60253
Reviewed-by: Caleb N. Palmer <cnpalmer@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Brian J. Stegmiller <bjs@us.ibm.com>
Reviewed-by: Zane C. Shelley <zshelle@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/60517
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>

src/usr/diag/prdf/common/plat/p9/prdfP9Ec.C

@@ -62,8 +62,10 @@ void maskIfCoreCs( ExtensibleChip * i_chip )
     {
         // Mask bit 4 for recoverable and checkstop
         coreFirMask->SetBit(4);
-        // Mask bit 2 for unit cs summary reported as recoverable
-        coreFirMask->SetBit(2);
+        // Mask bit 0 for local checkstop summary
+        coreFirMask->SetBit(0);
+        // Mask bit 26 (mask for debug trigger)
+        coreFirMask->SetBit(26);
 
         // Mask bit 1 for Unit checkstop
         coreUcsMask->SetBit(1);