Altera TSE: Add Altera Ethernet Driver SGDMA file components

This patch adds the SGDMA soft IP support for the Altera Triple
Speed Ethernet driver.

Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/ethernet/altera/altera_sgdma.c
Simple merge

diff --cc drivers/net/ethernet/altera/altera_sgdma.h
Simple merge

diff --cc drivers/net/ethernet/altera/altera_sgdmahw.h
Simple merge