ARM: uniphier: drop #include <log.h> again

I do not understand the changes made to these files by
commit f7ae49fc ("common: Drop log.h from common header").

  git show f7ae49fc -- arch/arm/mach-uniphier/

None of them uses the log function feature.

Simply revert the changes made to these files.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>