plat/arm/rddanielxlr: add platform function to return ROTPK

TBBR authentication framework depends on the plat_get_rotpk_info()
function to return the pointer to the Root of Trust Public Key (ROTPK)
stored in the platform along with its length. Add this function for
RD-Daniel Config-XLR platform to support Trusted Board Boot. The
function makes use of the wrapper function provided by the arm common
trusted board boot function to get the ROTPK hash.

Change-Id: I509e2f7e88cc2167e1732a971d71dc131d3d4b01
Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
diff --git a/plat/arm/board/rddanielxlr/platform.mk b/plat/arm/board/rddanielxlr/platform.mk
index 1482c81..93967ad 100644
--- a/plat/arm/board/rddanielxlr/platform.mk
+++ b/plat/arm/board/rddanielxlr/platform.mk
@@ -32,6 +32,11 @@
 				lib/utils/mem_region.c			\
 				plat/arm/common/arm_nor_psci_mem_protect.c
 
+ifeq (${TRUSTED_BOARD_BOOT}, 1)
+BL1_SOURCES		+=	${RDDANIELXLR_BASE}/rddanielxlr_trusted_boot.c
+BL2_SOURCES		+=	${RDDANIELXLR_BASE}/rddanielxlr_trusted_boot.c
+endif
+
 # Enable dynamic addition of MMAP regions in BL31
 BL31_CFLAGS		+=	-DPLAT_XLAT_TABLES_DYNAMIC