ARM: dts: rmobile: Synchronize Gen3 DTs with Linux 5.6.2

Synchronize R-Car Gen3 device trees with Linux 5.6.2,
commit 9fbe5c87eaa9b72db08425c52c373eb5f6537a0a .

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/arm/dts/r8a77950-ulcb-u-boot.dts b/arch/arm/dts/r8a77950-ulcb-u-boot.dts
new file mode 100644
index 0000000..fb9bbe1
--- /dev/null
+++ b/arch/arm/dts/r8a77950-ulcb-u-boot.dts
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source extras for U-Boot for the ULCB board
+ *
+ * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
+ */
+
+#include "r8a77950-ulcb.dts"
+#include "r8a77950-u-boot.dtsi"
+
+/ {
+	cpld {
+		compatible = "renesas,ulcb-cpld";
+		status = "okay";
+		gpio-sck = <&gpio6 8 0>;
+		gpio-mosi = <&gpio6 7 0>;
+		gpio-miso = <&gpio6 10 0>;
+		gpio-sstbz = <&gpio2 3 0>;
+	};
+};
+
+&sdhi0 {
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr104;
+	max-frequency = <208000000>;
+};
+
+&sdhi2 {
+	mmc-hs400-1_8v;
+	max-frequency = <200000000>;
+};
+
+&vcc_sdhi0 {
+	u-boot,off-on-delay-us = <20000>;
+};