ARM: dts: k2e: Enable OF_CONTROL and DM

Import k2e specific DT files from Linux Kernel and enable
OF_CONTROL, DM, DM_SERIAL.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index c59c398..5ec20cf 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -170,7 +170,8 @@
 	vf610-colibri.dtb
 
 dtb-$(CONFIG_SOC_KEYSTONE) += k2hk-evm.dtb \
-	k2l-evm.dtb
+	k2l-evm.dtb \
+	k2e-evm.dtb
 
 targets += $(dtb-y)