arm: dts: k3-j721e: Add ddr node

Use the 3733MTs DDR configuration that is auto generated from
DDR_Regconfig tool.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Kevin Scholz <k-scholz@ti.com>
diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
index 815e334..54d7998 100644
--- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
@@ -6,6 +6,8 @@
 /dts-v1/;
 
 #include "k3-j721e-som-p0.dtsi"
+#include "k3-j721e-ddr-evm-lp4-3733.dtsi"
+#include "k3-j721e-ddr.dtsi"
 
 / {
 	aliases {