qcacmn: Fix MLO peer manager compilation issue

Fix MLO compilation issue while exporting the symbol
wlan_mlo_link_peer_delete.

Change-Id: I911917ab7f142fdc49ea99e9613ddb6fb86b5ab3
CRs-Fixed: 3067718

umac/mlo_mgr/src/wlan_mlo_mgr_peer.c

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2021, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -21,6 +22,7 @@
 #include "wlan_objmgr_peer_obj.h"
 #include "wlan_mlo_mgr_peer.h"
 #include "wlan_mlo_mgr_ap.h"
+#include "qdf_module.h"
 
 static void mlo_partner_peer_create_post(struct wlan_mlo_dev_context *ml_dev,
 					 struct wlan_objmgr_vdev *vdev_link,