Required Properties:
- compatible: Compatibility string. Must be 'arasan,sdhci-8.9a' or
- 'arasan,sdhci-4.9a'
+ 'arasan,sdhci-4.9a' or 'arasan,sdhci-5.1'
- reg: From mmc bindings: Register location and length.
- clocks: From clock bindings: Handles to clock inputs.
- clock-names: From clock bindings: Tuple including "clk_xin" and "clk_ahb"