p54: Move rx_mtu to struct bootrec_desc

The patch entitled "[PATCH] p54: Fix sparse warnings" added the __le16
variable rx_mtu to struct bootrec, but it could equally well be placed
in the struct bootrec_desc, which overlays the 'data' section of bootrec.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index b3c297e..f8cdd88 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -183,7 +183,7 @@
 			priv->headroom = desc->headroom;
 			priv->tailroom = desc->tailroom;
 			if (le32_to_cpu(bootrec->len) == 11)
-				priv->rx_mtu = le16_to_cpu(bootrec->rx_mtu);
+				priv->rx_mtu = le16_to_cpu(desc->rx_mtu);
 			else
 				priv->rx_mtu = (size_t)
 					0x620 - priv->tx_hdr_len;