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/dragonboard820c-uboot.dtsi b/arch/arm/dts/dragonboard820c-uboot.dtsi
index 2270ac7..457728a 100644
--- a/arch/arm/dts/dragonboard820c-uboot.dtsi
+++ b/arch/arm/dts/dragonboard820c-uboot.dtsi
@@ -7,26 +7,26 @@
 
 / {
 	smem {
-		u-boot,dm-pre-reloc;
+		bootph-all;
 	};
 
 	soc {
-		u-boot,dm-pre-reloc;
+		bootph-all;
 
 		pinctrl@1010000 {
-			u-boot,dm-pre-reloc;
+			bootph-all;
 
 			uart {
-				u-boot,dm-pre-reloc;
+				bootph-all;
 			};
 		};
 
 		clock-controller@300000 {
-			u-boot,dm-pre-reloc;
+			bootph-all;
 		};
 
 		serial@75b0000 {
-			u-boot,dm-pre-reloc;
+			bootph-all;
 		};
 	};
 };