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/imx7d-pico-pi-u-boot.dtsi b/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi
index 7307fba..67b41ae 100644
--- a/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi
+++ b/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi
@@ -15,7 +15,7 @@
 	pinctrl-0 = <&pinctrl_lcdif>;
 	status = "okay";
 	display = <&display0>;
-	u-boot,dm-pre-reloc;
+	bootph-all;
 
 	display0: display {
 		bits-per-pixel = <16>;