rock5b: raise eMMC compatibility as done for ROCK 5A

armbian/linux-rockchip@7628960

Everything is wired the same way, and mainline defines the same pinctl, only on vendor it is missing:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/arch/arm64/boot/dts/rockchip/rk3588-base-pinctrl.dtsi#n368

Signed-off-by: MichaIng <micha@dietpi.com>

Author: MichaIng

patch/kernel/rk35xx-vendor-6.1/board-rock5b-fix-emmc.patch

@@ -0,0 +1,24 @@
+diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+index 6dcfc6d46b9d5..659d372a5d703 100644
+--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+@@ -324,6 +324,10 @@ &dfi {
+ 	status = "okay";
+ };
+ 
++&emmc_data_strobe {
++	rockchip,pins = <2 RK_PA2 1 &pcfg_pull_down>;
++};
++
+ &i2c1 {
+ 	status = "okay";
+ 	pinctrl-names = "default";
+@@ -485,6 +489,8 @@ &sdhci {
+ 	mmc-hs400-1_8v;
+ 	mmc-hs400-enhanced-strobe;
+ 	mmc-hs200-1_8v;
++	pinctrl-names = "default";
++	pinctrl-0 = <&emmc_rstnout &emmc_bus8 &emmc_clk &emmc_cmd &emmc_data_strobe>;
+ 	status = "okay";
+ };
+