arm64: tegra: Update SDMMC4 speeds for Tegra194

Add required device-tree properties to populate all speed
modes supported by SDMMC4 instance of Tegra194 SDHCI controller.
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra194.dtsi

@@ -976,6 +976,11 @@ sdmmc4: mmc@3460000 {
 			nvidia,default-tap = <0x8>;
 			nvidia,default-trim = <0x14>;
 			nvidia,dqs-trim = <40>;
+			cap-mmc-highspeed;
+			mmc-ddr-1_8v;
+			mmc-hs200-1_8v;
+			mmc-hs400-1_8v;
+			mmc-hs400-enhanced-strobe;
 			supports-cqe;
 			status = "disabled";
 		};