Fix DHCP protocol so U-Boot does not respond too early

on the network with it's offered IP number; it should not reply until
after it has received a DHCP ACK message. Also ensures that U-Boot
does it's DHCPREQUEST as broadcast (per RFC 2131).

Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>

net/bootp.c

@@ -924,8 +924,6 @@ DhcpHandler(uchar * pkt, unsigned dest, unsigned src, unsigned len)
 			if (NetReadLong((ulong*)&bp->bp_vend[0]) == htonl(BOOTP_VENDOR_MAGIC))
 				DhcpOptionsProcess((u8 *)&bp->bp_vend[4], bp);
 
-			BootpCopyNetParams(bp); /* Store net params from reply */
-
 			NetSetTimeout(TIMEOUT * CFG_HZ, BootpTimeout);
 			DhcpSendRequestPkt(bp);
 #ifdef CFG_BOOTFILE_PREFIX