ARM: dts: rockchip: fix rockchip,default-sample-phase property names

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/arm/boot/dts/rk3036-evb.dt.yaml: mmc@1021c000:
'default-sample-phase' 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]+'

'default-sample-phase' is not a valid property name for mmc nodes.
Fix this error by renaming it to 'rockchip,default-sample-phase'.

make ARCH=arm 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/20200307134841.13803-2-jbx6244@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3036-kylin.dts

@@ -319,7 +319,7 @@ &sdio {
 	bus-width = <4>;
 	cap-sd-highspeed;
 	cap-sdio-irq;
-	default-sample-phase = <90>;
+	rockchip,default-sample-phase = <90>;
 	keep-power-in-suspend;
 	mmc-pwrseq = <&sdio_pwrseq>;
 	non-removable;

arch/arm/boot/dts/rk3036.dtsi

@@ -263,7 +263,7 @@ emmc: mmc@1021c000 {
 		clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
 			 <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
 		clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
-		default-sample-phase = <158>;
+		rockchip,default-sample-phase = <158>;
 		disable-wp;
 		dmas = <&pdma 12>;
 		dma-names = "rx-tx";

arch/arm/boot/dts/rk322x.dtsi

@@ -698,7 +698,7 @@ emmc: mmc@30020000 {
 			 <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
 		clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
 		bus-width = <8>;
-		default-sample-phase = <158>;
+		rockchip,default-sample-phase = <158>;
 		fifo-depth = <0x100>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;