sh: Add some register value configurable to PCI of SH7780

Some register value was hardcoded for System memory size 128MB and
memory offset 0x08000000. This patch fixed the problem.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
3 files changed