ARM: DTS: Provide vf610-bk4r1-u-boot.dtsi for U-Boot specific properties

This commit brings a separate file in which the U-Boot specific
properties (like 'dm-pre-reloc') are provided.

Such approach allows easy sync with upstream Linux kernel in the
future.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/dts/vf610-bk4r1-u-boot.dtsi b/arch/arm/dts/vf610-bk4r1-u-boot.dtsi
new file mode 100644
index 0000000..088926b
--- /dev/null
+++ b/arch/arm/dts/vf610-bk4r1-u-boot.dtsi
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2019
+ * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
+ */
+
+/ {
+	soc {
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&aips0 {
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl_ddr {
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl_uart1 {
+	u-boot,dm-pre-reloc;
+};
+
+&uart1 {
+	u-boot,dm-pre-reloc;
+};