rt2x00: Fix optimize register access for rt2800pci

The patch
	rt2x00: Optimize register access in rt2800pci
from Helmut Schaa missed one register call, namely
the rt2800_register_multiwrite which should be changed
to rt2x00pci_register_multiwrite.
Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com>
Acked-by: NHelmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800pci.c

@@ -302,8 +302,8 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
 	/*
 	 * Write firmware to device.
 	 */
-	rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
-				   data, len);
+	rt2x00pci_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
+				      data, len);
 
 	rt2x00pci_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000);
 	rt2x00pci_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001);