rt2x00: Sync rt2800 MCU boot signal with Ralink driver.

Latest versions of the Ralink rt2800 family drivers use 0 as the token value,
not 0xff.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 846600f..b5a871e 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -497,7 +497,7 @@
 	/*
 	 * Send signal to firmware during boot time.
 	 */
-	rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0xff, 0, 0);
+	rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
 
 	/*
 	 * Enable RX.