wl1251: fix beacon filter table structure

The beacon filter table configuration ACX structure had certain elements
reversed, fix it to match TI driver.

Based on wl1271 patch 1937e742639c03a6fe77239c3003ce9602302117 by
Juuso Oikarinen.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wl12xx/wl1251_acx.h

@@ -459,8 +459,8 @@ struct acx_beacon_filter_ie_table {
 	struct acx_header header;
 
 	u8 num_ie;
-	u8 table[BEACON_FILTER_TABLE_MAX_SIZE];
 	u8 pad[3];
+	u8 table[BEACON_FILTER_TABLE_MAX_SIZE];
 } __packed;
 
 #define SYNCH_FAIL_DEFAULT_THRESHOLD    10     /* number of beacons */