feat(versal): add DTB console to platform.mk

In the platform.mk file, new console types named dtb
are to be created a macro, VERSAL_CONSOLE_ID_dtb, will
be introduced to check DT console.Users will have the
option to select VERSAL_CONSOLE to dtb, which will run
from the DDR address and OCM. The address XILINX_OF_BOARD_DTB_ADDR
needs to be provided. This configuration will register the
DT console in TF-A.

Change-Id: Iee0ed2d5bb73c833f34809699203622b912cdbd7
Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
Signed-off-by: Maheedhar Bollapalli <MaheedharSai.Bollapalli@amd.com>
diff --git a/plat/xilinx/versal/platform.mk b/plat/xilinx/versal/platform.mk
index 45bc780..2135338 100644
--- a/plat/xilinx/versal/platform.mk
+++ b/plat/xilinx/versal/platform.mk
@@ -85,7 +85,7 @@
 				${XLAT_TABLES_LIB_SRCS}
 
 VERSAL_CONSOLE	?=	pl011
-ifeq (${VERSAL_CONSOLE}, $(filter ${VERSAL_CONSOLE},pl011 pl011_0 pl011_1 dcc))
+ifeq (${VERSAL_CONSOLE}, $(filter ${VERSAL_CONSOLE},pl011 pl011_0 pl011_1 dcc dtb))
 else
   $(error "Please define VERSAL_CONSOLE")
 endif