arm64: dts: uniphier: Add missing clock-names and reset-names to pcie-phy

This adds missing clock-names and reset-names to pcie-phy node according to
Documentation/devicetree/bindings/phy/socionext,uniphier-pcie.yaml.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>