arm64: dts: rockchip: replace clock-freq-min-max by max-frequency

arm64: dts: rockchip: replace clock-freq-min-max by max-frequency

A test with the command below does not detect all errors
in combination with 'additionalProperties: false' and
allOf:
  - $ref: "synopsys-dw-mshc-common.yaml#"
allOf:
  - $ref: "mmc-controller.yaml#"

'additionalProperties' applies to all properties that are not
accounted-for by 'properties' or 'patternProperties' in
the immediate schema.

First when we combine rockchip-dw-mshc.yaml,
synopsys-dw-mshc-common.yaml and mmc-controller.yaml it gives
for example this error:

arch/arm64/boot/dts/rockchip/rk3399-hugsun-x99.dt.yaml: mmc@fe320000:
'clock-freq-min-max' does not match any of the regexes:
'^.*@[0-9]+$', '^clk-phase-(legacy|sd-hs|mmc-(hs|hs[24]00|ddr52)|
uhs-(sdr(12|25|50|104)|ddr50))$', 'pinctrl-[0-9]+'

'clock-freq-min-max' is deprecated, so replace it by 'max-frequency'.

make ARCH=arm64 dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20200307134841.13803-5-jbx6244@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>