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/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index 316136c..12775e8 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -147,4 +147,14 @@
 		   target->cred_dist_cntxt->cur_free_credits);
 }
 
+int ath6kl_debug_init(struct ath6kl *ar)
+{
+	ar->debugfs_phy = debugfs_create_dir("ath6kl",
+					     ar->wdev->wiphy->debugfsdir);
+	if (!ar->debugfs_phy)
+		return -ENOMEM;
+
+	/* TODO: Create debugfs file entries for various target/host stats */
+	return 0;
+}
 #endif