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/imx6ulz-bsh-smm-m2-u-boot.dtsi b/arch/arm/dts/imx6ulz-bsh-smm-m2-u-boot.dtsi
index 75dbf6e..7730bb6 100644
--- a/arch/arm/dts/imx6ulz-bsh-smm-m2-u-boot.dtsi
+++ b/arch/arm/dts/imx6ulz-bsh-smm-m2-u-boot.dtsi
@@ -6,30 +6,30 @@
  */
 
 &{/soc} {
-	u-boot,dm-pre-reloc;
+	bootph-all;
 };
 
 &aips2 {
-	u-boot,dm-pre-reloc;
+	bootph-all;
 };
 
 &iomuxc {
-	u-boot,dm-pre-reloc;
+	bootph-all;
 };
 
 &iomuxc_snvs {
-	u-boot,dm-pre-reloc;
+	bootph-all;
 };
 
 &uart4 {
-	u-boot,dm-pre-reloc;
+	bootph-all;
 };
 
 &pinctrl_uart4 {
-	u-boot,dm-pre-reloc;
+	bootph-all;
 };
 
 &gpmi {
-	u-boot,dm-spl;
-	u-boot,dm-pre-reloc;
+	bootph-pre-ram;
+	bootph-all;
 };