netxen: fix skb alloc size for legacy firmware

Request 1532 bytes skb data size for NX3031. NX2031 firmware
needs 1760 sized buffers.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2 files changed