uboot-imx

ARM: uniphier: use (devm_)ioremap() instead of map_sysmem()

This does not have much impact on behavior, but makes code look more
more like Linux.  The use of devm_ioremap() often helps to delete
.remove callbacks entirely.

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