Merge branch 'master' of git://git.denx.de/u-boot-uniphier

- Enable eMMC driver for LD11/LD20 SoCs
- Refactoring of SoC init code
- Bug fix of pinctrl driver

ARM: uniphier: refactor SBC init code

Merge sbc-admulti.c and sbc-savepin.c into a single file to avoid
code duplication.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>