rockchip: rk3588-rock-5b: Enable support for PCIe SATA cards

Enable support for PCIe SATA cards and the on-board SATA controller.

This also revert use of CONFIG_PCI_INIT_R in order to speed up boot from
eMMC or SD-cards. Standard boot will initialize pci after faster boot
media have been enumerated.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Christopher Obbard <chris.obbard@collabora.com>
Tested-by: Christopher Obbard <chris.obbard@collabora.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>