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