qcacmn: Add back port flag for multi AKM connect support

Add logic to set back port flag based on Linux kernel version
for multi AKM connect support.

Change-Id: Ia2365afc678edf025f63d4d3c0fc963c97193eb8
CRs-Fixed: 3246135

os_if/linux/mlme/inc/osif_cm_req.h

@@ -29,6 +29,7 @@
 #include "wlan_cm_public_struct.h"
 #include <net/cfg80211.h>
 #include "wlan_objmgr_vdev_obj.h"
+#include "wlan_osif_features.h"
 
 /**
  * struct osif_connect_params - extra connect params