arm64: dts: rockchip: add pinctrl and alias to emmc node to rk3568-evb1-v10

Since the EMMC pins can be used for other functions as well, we need to
configure the pinctrl.
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20210805120107.27007-8-michael.riesch@wolfvision.netSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts

@@ -17,6 +17,7 @@ aliases {
 		ethernet0 = &gmac0;
 		ethernet1 = &gmac1;
 		mmc0 = &sdmmc0;
+		mmc1 = &sdhci;
 	};
 
 	chosen: chosen {
@@ -363,6 +364,8 @@ &sdhci {
 	bus-width = <8>;
 	max-frequency = <200000000>;
 	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_bus8 &emmc_clk &emmc_cmd &emmc_datastrobe>;
 	status = "okay";
 };