arm64: dts: rockchip: add default pinctrl for rk3588 emmc

Add a default pinctrl definition for the rk3588 emmc.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230531161220.280744-2-macroalpha82@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3588s.dtsi

@@ -1187,6 +1187,9 @@ sdhci: mmc@fe2e0000 {
 			 <&cru TMCLK_EMMC>;
 		clock-names = "core", "bus", "axi", "block", "timer";
 		max-frequency = <200000000>;
+		pinctrl-0 = <&emmc_rstnout>, <&emmc_bus8>, <&emmc_clk>,
+			    <&emmc_cmd>, <&emmc_data_strobe>;
+		pinctrl-names = "default";
 		resets = <&cru SRST_C_EMMC>, <&cru SRST_H_EMMC>,
 			 <&cru SRST_A_EMMC>, <&cru SRST_B_EMMC>,
 			 <&cru SRST_T_EMMC>;