STOP: Fix hole in 62403

Key_Cronus_Test=PM_REGRESS

Change-Id: Ieef4ad78a186fbbb7ae9fc947b21640970b723f0
CQ: SW438634
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/62843
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

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

@@ -416,6 +416,12 @@ p9_cme_stop_entry()
                          G_cme_stop_record.act_level[0],
                          G_cme_stop_record.act_level[1]);
 
+            if (!core)
+            {
+                PK_TRACE_INF("WARNING: STOP1 PM_ACTIVE to be Ignored. Return");
+                return;
+            }
+
             // Mark core as to be stopped
             G_cme_stop_record.core_running &= ~core;