ath6kl: Add initial debugfs changes

Just initial debugfs changes. The debugfs directory would
be created at <debugfs_root>/ieee80211/phyX/ath6kl.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index 75230ac..ad9716c 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -573,6 +573,12 @@
 	ar->wdev = wdev;
 	wdev->iftype = NL80211_IFTYPE_STATION;
 
+	if (ath6kl_debug_init(ar)) {
+		ath6kl_err("Failed to initialize debugfs\n");
+		ath6kl_cfg80211_deinit(ar);
+		return NULL;
+	}
+
 	dev = alloc_netdev(0, "wlan%d", ether_setup);
 	if (!dev) {
 		ath6kl_err("no memory for network device instance\n");