dm: dts: Convert driver model tags to use new schema

Now that Linux has accepted these tags, move the device tree files in
U-Boot over to use them.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/dts/armada-388-clearfog-u-boot.dtsi b/arch/arm/dts/armada-388-clearfog-u-boot.dtsi
index 9662929..fb27a3b 100644
--- a/arch/arm/dts/armada-388-clearfog-u-boot.dtsi
+++ b/arch/arm/dts/armada-388-clearfog-u-boot.dtsi
@@ -1,38 +1,38 @@
 // SPDX-License-Identifier: GPL-2.0+
 
 &spi1 {
-	u-boot,dm-spl;
+	bootph-pre-ram;
 
 	spi-flash@0 {
-		u-boot,dm-spl;
+		bootph-pre-ram;
 	};
 };
 
 &sdhci {
-	u-boot,dm-spl;
+	bootph-pre-ram;
 };
 
 &gpio0 {
-	u-boot,dm-spl;
+	bootph-pre-ram;
 };
 
 &ahci0 {
-	u-boot,dm-spl;
+	bootph-pre-ram;
 };
 
 &ahci1 {
-	u-boot,dm-spl;
+	bootph-pre-ram;
 };
 
 &i2c0 {
-	u-boot,dm-spl;
+	bootph-pre-ram;
 
 	eeprom@52 {
-		u-boot,dm-spl;
+		bootph-pre-ram;
 	};
 
 	eeprom@53 {
-		u-boot,dm-spl;
+		bootph-pre-ram;
 	};
 };