arm, am335x: siemens: enable DM/DTS support

enable basic DM/DTS support for the siemens am335x based boards.

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 0b2b269..7fe10c8 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -95,10 +95,14 @@
 	zynqmp-zc1751-xm016-dc2.dtb		\
 	zynqmp-zc1751-xm018-dc4.dtb		\
 	zynqmp-zc1751-xm019-dc5.dtb
-dtb-$(CONFIG_AM33XX) += am335x-boneblack.dtb am335x-bone.dtb am335x-evm.dtb \
+dtb-$(CONFIG_AM33XX) += am335x-boneblack.dtb am335x-bone.dtb \
+	am335x-draco.dtb \
+	am335x-evm.dtb \
 	am335x-evmsk.dtb \
 	am335x-bonegreen.dtb \
-	am335x-icev2.dtb
+	am335x-icev2.dtb \
+	am335x-pxm50.dtb \
+	am335x-rut.dtb
 dtb-$(CONFIG_AM43XX) += am437x-gp-evm.dtb am437x-sk-evm.dtb	\
 	am43x-epos-evm.dtb \
 	am437x-idk-evm.dtb