UniPhier SoCs (except PH1-sLD3) have several nodes in common.
Factor out them into uniphier-common32.dtsi. This improves the code
maintainability.
PH1-sLD3 is so old that it has more or less different register maps
than the others. So, it cannot be included in this refactoring.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
