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/hpe-gxp-u-boot.dtsi b/arch/arm/dts/hpe-gxp-u-boot.dtsi
index 7a2b488..63a1a11 100644
--- a/arch/arm/dts/hpe-gxp-u-boot.dtsi
+++ b/arch/arm/dts/hpe-gxp-u-boot.dtsi
@@ -8,10 +8,10 @@
 / {
 
 	axi {
-		u-boot,dm-pre-reloc;
+		bootph-all;
 
 		ahb@c0000000 {
-			u-boot,dm-pre-reloc;
+			bootph-all;
 
 			spi0: spi@200 {
 				compatible = "hpe,gxp-spi";