arm64: dts: rockchip: Lower sd speed on rk3566-soquartz

Just like the Quartz64 Model B the previously stated speed of sdr-104
in soquartz is too high for the hardware to reliably communicate with
some fast SD cards.
Especially on some carrierboards.

Lower this to sd-uhs-sdr50 to fix this.

Fixes: 5859b5a ("arm64: dts: rockchip: add SoQuartz CM4IO dts")
Signed-off-by: Dan Johansen <[email protected]>
Acked-by: Peter Geis <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Stuebner <[email protected]>

Author: Strit

arch/arm64/boot/dts/rockchip/rk3566-soquartz.dtsi

@@ -598,7 +598,7 @@
 	non-removable;
 	pinctrl-names = "default";
 	pinctrl-0 = <&sdmmc1_bus4 &sdmmc1_cmd &sdmmc1_clk>;
-	sd-uhs-sdr104;
+	sd-uhs-sdr50;
 	vmmc-supply = <&vcc3v3_sys>;
 	vqmmc-supply = <&vcc_1v8>;
 	status = "okay";