ARM: dts: uniphier: add reset-names to NAND controller node

Import Linux commits:

37f3e0096f71 ("ARM: dts: uniphier: add reset-names to NAND controller node")
e98d5023fe1f ("arm64: dts: uniphier: add reset-names to NAND controller node")

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