wil6210: update WIL_MCS_MAX to 15

Update max MCS to 15, which is supported by Talyn-MB.
This will allow collecting statistics on number of RX packets
in higher MCS.
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

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

@@ -569,7 +569,7 @@ struct wil_status_ring {
 };
 
 #define WIL_STA_TID_NUM (16)
-#define WIL_MCS_MAX (12) /* Maximum MCS supported */
+#define WIL_MCS_MAX (15) /* Maximum MCS supported */
 
 struct wil_net_stats {
 	unsigned long	rx_packets;