ath6kl: Remove callback msg_pending() and used the function directly

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath6kl/htc.h

@@ -549,6 +549,8 @@ void htc_indicate_activity_change(struct htc_target *target,
 				  enum htc_endpoint_id endpoint, bool active);
 int htc_get_rxbuf_num(struct htc_target *target, enum htc_endpoint_id endpoint);
 int htc_add_rxbuf_multiple(struct htc_target *target, struct list_head *pktq);
+int htc_rxmsg_pending_handler(struct htc_target *target, u32 msg_look_ahead[],
+			      int *n_pkts);
 
 static inline void set_htc_pkt_info(struct htc_packet *packet, void *context,
 				    u8 *buf, unsigned int len,