rt2400pci: fix RSSI read

RSSI value is provided on word3 not on word2.

Cc: [email protected]
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: John W. Linville <[email protected]>

Author: sgruszka

drivers/net/wireless/rt2x00/rt2400pci.c

@@ -1261,7 +1261,7 @@ static void rt2400pci_fill_rxdone(struct queue_entry *entry,
 	 */
 	rxdesc->timestamp = ((u64)rx_high << 32) | rx_low;
 	rxdesc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL) & ~0x08;
-	rxdesc->rssi = rt2x00_get_field32(word2, RXD_W3_RSSI) -
+	rxdesc->rssi = rt2x00_get_field32(word3, RXD_W3_RSSI) -
 	    entry->queue->rt2x00dev->rssi_offset;
 	rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);