qcacmn: Export wlan_abort_scan API

Export wlan_abort_scan API so that scan abort can be done at
pdev level.

Change-Id: I1be18677fd186c6b80acaa87fa2b10258663788c

os_if/linux/scan/src/wlan_cfg80211_scan.c

@@ -22,6 +22,7 @@
 
 #include <qdf_list.h>
 #include <qdf_status.h>
+#include <qdf_module.h>
 #include <linux/wireless.h>
 #include <linux/netdevice.h>
 #include <net/cfg80211.h>
@@ -1696,6 +1697,8 @@ QDF_STATUS wlan_abort_scan(struct wlan_objmgr_pdev *pdev,
 	return status;
 }
 
+qdf_export_symbol(wlan_abort_scan);
+
 int wlan_cfg80211_abort_scan(struct wlan_objmgr_pdev *pdev)
 {
 	uint8_t pdev_id;