STOP: Fix VDM Droop Event DB3 Window condition breaking STOP

Key_Cronus_Test=PM_REGRESS

Change-Id: I9ba799f1e0d87868b86a87bc70a334bca070a660
CQ: SW438457
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/62846
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/pstate_cme/p9_cme_thread_db.c

@@ -272,7 +272,12 @@ void p9_cme_pstate_db3_handler(void)
     else if (db3.fields.cme_message_numbern == MSGID_DB3_UNSUSPEND_STOP_ENTRY)
     {
         G_cme_stop_record.core_vdm_droop = 0;
-        p9_cme_stop_eval_eimr_override();
+
+        if (!(G_cme_stop_record.entry_ongoing ||
+              G_cme_stop_record.exit_ongoing))
+        {
+            p9_cme_stop_eval_eimr_override();
+        }
 
         //Notify and Receive ack from sibling CME. This syncs up
         //Quad Manager and Sibling before Quad Manager acks back to