arm64: dts: rockchip: remove num-slots from all platforms

We deprecated the "num-slots" property now and plan to get
rid of it finally. Just move a step to cleanup it from DT.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3368-evb.dtsi

@@ -156,7 +156,6 @@ &emmc {
 	disable-wp;
 	mmc-pwrseq = <&emmc_pwrseq>;
 	non-removable;
-	num-slots = <1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
 	status = "okay";

arch/arm64/boot/dts/rockchip/rk3368-geekbox.dts

@@ -117,7 +117,6 @@ &emmc {
 	clock-frequency = <150000000>;
 	disable-wp;
 	non-removable;
-	num-slots = <1>;
 	vmmc-supply = <&vcc_io>;
 	vqmmc-supply = <&vcc18_flash>;
 	pinctrl-names = "default";

arch/arm64/boot/dts/rockchip/rk3368-orion-r68-meta.dts

@@ -203,7 +203,6 @@ &emmc {
 	mmc-hs200-1_2v;
 	mmc-hs200-1_8v;
 	non-removable;
-	num-slots = <1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
 	status = "okay";
@@ -347,7 +346,6 @@ &sdmmc {
 	max-frequency = <50000000>;
 	cap-sd-highspeed;
 	card-detect-delay = <200>;
-	num-slots = <1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
 	vmmc-supply = <&vcc_sd>;

arch/arm64/boot/dts/rockchip/rk3368-px5-evb.dts

@@ -91,7 +91,6 @@ &emmc {
 	no-sdio;
 	no-sd;
 	non-removable;
-	num-slots = <1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_clk>, <&emmc_cmd>, <&emmc_bus8>;
 	vmmc-supply = <&vcc_io>;
@@ -281,7 +280,6 @@ &sdmmc {
 	card-detect-delay = <200>;
 	no-emmc;
 	no-sdio;
-	num-slots = <1>;
 	sd-uhs-sdr12;
 	sd-uhs-sdr25;
 	pinctrl-names = "default";

arch/arm64/boot/dts/rockchip/rk3368-r88.dts

@@ -189,7 +189,6 @@ &emmc {
 	disable-wp;
 	mmc-pwrseq = <&emmc_pwrseq>;
 	non-removable;
-	num-slots = <1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
 	status = "okay";
@@ -254,7 +253,6 @@ &sdio0 {
 	keep-power-in-suspend;
 	mmc-pwrseq = <&sdio_pwrseq>;
 	non-removable;
-	num-slots = <1>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&sdio0_clk &sdio0_cmd &sdio0_bus4>;
 	vmmc-supply = <&vcc_io>;