gianfar: Make FCB access endian safe

Use conversion macros to correctly access the BE
fields of the Rx and Tx Frame Control Block on LE CPUs.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/ethernet/freescale/gianfar.c
Simple merge

diff --cc drivers/net/ethernet/freescale/gianfar.h
Simple merge