sky2: use roundup() macro

Use roundup() macro to size receive buffer.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 4e0b839..8cc3eea 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1180,8 +1180,7 @@
 	rx_set_checksum(sky2);
 
 	/* Space needed for frame data + headers rounded up */
-	size = ALIGN(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8)
-		+ 8;
+	size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8);
 
 	/* Stopping point for hardware truncation */
 	thresh = (size - 8) / sizeof(u32);