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/comtrend,ct-5361.dts b/arch/mips/dts/comtrend,ct-5361.dts
index f6b8a94..8170095 100644
--- a/arch/mips/dts/comtrend,ct-5361.dts
+++ b/arch/mips/dts/comtrend,ct-5361.dts
@@ -59,7 +59,7 @@
 };
 
 &uart0 {
-	u-boot,dm-pre-reloc;
+	bootph-all;
 	status = "okay";
 };