net: sh-eth: Add control for padding size of packet descriptor

sh-eth can change the alignment size of a packet descriptor according to BUS
size. This patch adds this function.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
2 files changed