3com: convert drivers to netdev_tx_t

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/3c501.c
Simple merge

diff --cc drivers/net/3c501.h
Simple merge

diff --cc drivers/net/3c505.c
Simple merge

diff --cc drivers/net/3c507.c
Simple merge

diff --cc drivers/net/3c509.c
Simple merge

diff --cc drivers/net/3c515.c
Simple merge

diff --cc drivers/net/3c523.c
Simple merge

diff --cc drivers/net/3c527.c
Simple merge

diff --cc drivers/net/3c59x.c
Simple merge