STOP: Fix Data Machine Check with PLS Fix

Key_Cronus_Test=PM_REGRESS

Change-Id: I299f8e46ec1cc01e5d93d2ac7eb87f58291e7215
Original-Change-Id: I5ef81a8c36a51d56881d453d008669707e6269b6
CQ: SW416039
CQ: SW419333
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/54867
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Cronus HW CI <cronushw-ci+hostboot@us.ibm.com>
Reviewed-by: RANGANATHPRASAD G. BRAHMASAMUDRA <prasadbgr@in.ibm.com>
Reviewed-by: Michael S. Floyd <mfloyd@us.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>

import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_stop_entry.c

@@ -593,6 +593,10 @@ p9_cme_stop_entry()
 
             if (target_level > STOP_LEVEL_3 || deeper_level > STOP_LEVEL_3)
             {
+                if (target_level < STOP_LEVEL_4)
+                {
+                    core = deeper_core;
+                }
 
 #ifdef PLS_DEBUG
 
@@ -784,6 +788,10 @@ p9_cme_stop_entry()
 
                 sync();
 
+                if (target_level < STOP_LEVEL_4)
+                {
+                    core = CME_MASK_BC;
+                }
             }
 
 #endif