bnx2x: GPIO accessories

A GPIO is used with the 8726 PHY. Adding the GPIO related functions in this

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/bnx2x.h
Simple merge

diff --cc drivers/net/bnx2x_main.c
Simple merge

diff --cc drivers/net/bnx2x_reg.h
Simple merge