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/mips/dts/img,boston.dts b/arch/mips/dts/img,boston.dts
index 1d4eeda..c1a7396 100644
--- a/arch/mips/dts/img,boston.dts
+++ b/arch/mips/dts/img,boston.dts
@@ -178,14 +178,14 @@
 	plat_regs: system-controller@17ffd000 {
 		compatible = "img,boston-platform-regs", "syscon";
 		reg = <0x17ffd000 0x1000>;
-		u-boot,dm-pre-reloc;
+		bootph-all;
 	};
 
 	clk_boston: clock {
 		compatible = "img,boston-clock";
 		#clock-cells = <1>;
 		regmap = <&plat_regs>;
-		u-boot,dm-pre-reloc;
+		bootph-all;
 	};
 
 	reboot: syscon-reboot {
@@ -206,7 +206,7 @@
 
 		clocks = <&clk_boston BOSTON_CLK_SYS>;
 
-		u-boot,dm-pre-reloc;
+		bootph-all;
 	};
 
 	lcd: lcd@17fff000 {