clk: rockchip: rk3528: Add SD/SDIO tuning clocks in GRF region

These clocks locate in VO and VPU GRF, serving for SD/SDIO controller
tuning purpose. Add their definitions and register them in driver if
corresponding GRF is available.

GRFs are looked up by compatible to simplify devicetree binding.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Link: https://lore.kernel.org/r/20250506092206.46143-4-ziyao@disroot.org


Signed-off-by: Heiko Stuebner <heiko@sntech.de>