staging: wilc1000: fixes braces {} should be used on all arms of this statement

This patch fixes the error reported by checkpatch.pl
for braces {} should be used on all arms of this statement
Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/wilc_wlan.c

@@ -1104,9 +1104,9 @@ static void wilc_wlan_handle_isr_ext(struct wilc *wilc, u32 int_status)
 		if (LINUX_RX_SIZE - offset < size)
 			offset = 0;
 
-		if (p->rx_buffer)
+		if (p->rx_buffer) {
 			buffer = &p->rx_buffer[offset];
-		else {
+		} else {
 			wilc_debug(N_ERR, "[wilc isr]: fail Rx Buffer is NULL...drop the packets (%d)\n", size);
 			goto _end_;
 		}