wil6210: print debug message when transmitting while disconnected

Network stack can try to transmit data while AP / STA is
disconnected.
Change this print-out to debug level as this should not be
handled as error.
This patch also adds wil_dbg_ratelimited, used to limit the
above print-out.

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/wil6210/wil6210.h

@@ -640,6 +640,8 @@ __printf(2, 3)
 void __wil_err_ratelimited(struct wil6210_priv *wil, const char *fmt, ...);
 __printf(2, 3)
 void __wil_info(struct wil6210_priv *wil, const char *fmt, ...);
+__printf(2, 3)
+void wil_dbg_ratelimited(const struct wil6210_priv *wil, const char *fmt, ...);
 #define wil_dbg(wil, fmt, arg...) do { \
 	netdev_dbg(wil_to_ndev(wil), fmt, ##arg); \
 	wil_dbg_trace(wil, fmt, ##arg); \