ath11k: Remove unneeded semicolon

Fixes coccicheck warning:

drivers/net/wireless/ath/ath11k/wmi.h:2570:2-3: Unneeded semicolon

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 5b64eb2..780e72c28 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -2569,7 +2569,7 @@ static inline const char *ath11k_wmi_phymode_str(enum wmi_phy_mode mode)
 		/* no default handler to allow compiler to check that the
 		 * enum is fully handled
 		 */
-	};
+	}
 
 	return "<unknown>";
 }