wlan: Out of scope object reference in hdd_hostapd_SAPEventCB()

Static source code analysis identified an issue where a pointer to
"struct iw_michaelmicfailure msg" was being referenced outside its
scope.  Relocate the definition so that it will still be in scope
when the pointer to it is referenced.

Change-Id: I7ff80ce2e0934ecf0ebd1a4f492e8761d4b0f5d8
CRs-fixed: 470188
diff --git a/CORE/HDD/src/wlan_hdd_hostapd.c b/CORE/HDD/src/wlan_hdd_hostapd.c
index bfe4715..aa0fc90 100644
--- a/CORE/HDD/src/wlan_hdd_hostapd.c
+++ b/CORE/HDD/src/wlan_hdd_hostapd.c
@@ -456,6 +456,7 @@
     char *startBssEvent; 
     hdd_context_t *pHddCtx;
     hdd_scaninfo_t *pScanInfo  = NULL;
+    struct iw_michaelmicfailure msg;
 
     dev = (struct net_device *)usrDataForCallback;
     pHostapdAdapter = netdev_priv(dev);
@@ -565,7 +566,6 @@
            return VOS_STATUS_SUCCESS;
         case eSAP_STA_MIC_FAILURE_EVENT:
         {
-            struct iw_michaelmicfailure msg;
             memset(&msg, '\0', sizeof(msg));
             msg.src_addr.sa_family = ARPHRD_ETHER;
             memcpy(msg.src_addr.sa_data, &pSapEvent->sapevt.sapStationMICFailureEvent.staMac, sizeof(v_MACADDR_t));