ARM: dts: uniphier: Add ahci controller nodes for Pro4

Add ahci controller, glue layer, and clock nodes for Pro4 SoC. The glue
layer includes reset and phy, and the clock node is used for handling ahci
clocks on SoC-glue.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20220913042249.4708-7-hayashi.kunihiko@socionext.com

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Signed-off-by: Arnd Bergmann <arnd@arndb.de>