The gose board has R8A7793, 1GB DDR3-SDRAM, USB, Ethernet, and more.
This patch supports the following functions:
- DDR3-SDRAM
- SCIF
- QSPI
- SPI

Signed-off-by: Hisashi Nakamura
Signed-off-by: Nobuhiro Iwamatsu
CC: Masahiro Yamada
Signed-off-by: Nobuhiro Iwamatsu