build: add build config for rdn2cfg3 in tf and tftf

Add tf and tftf build configs for infra-rd platform rdn2cfg3

Signed-off-by: Tony K Nadackal <tony.nadackal@arm.com>
Change-Id: I483886898920ebd74d5003661528479b0ae2c2fc
diff --git a/group/tf-l1-build-fvp/fvp-rdn2cfg3-tbb:nil b/group/tf-l1-build-fvp/fvp-rdn2cfg3-tbb:nil
new file mode 100644
index 0000000..c473896
--- /dev/null
+++ b/group/tf-l1-build-fvp/fvp-rdn2cfg3-tbb:nil
@@ -0,0 +1,6 @@
+#
+# Copyright (c) 2023, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
diff --git a/group/tftf-l1-build/nil,fvp-rdn2cfg3-default:nil b/group/tftf-l1-build/nil,fvp-rdn2cfg3-default:nil
new file mode 100644
index 0000000..5515958
--- /dev/null
+++ b/group/tftf-l1-build/nil,fvp-rdn2cfg3-default:nil
@@ -0,0 +1,6 @@
+#
+# Copyright (c) 2023 Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
diff --git a/tf_config/fvp-rdn2cfg3-tbb b/tf_config/fvp-rdn2cfg3-tbb
new file mode 100644
index 0000000..27c2809
--- /dev/null
+++ b/tf_config/fvp-rdn2cfg3-tbb
@@ -0,0 +1,8 @@
+ARM_ROTPK_LOCATION=devel_rsa
+CREATE_KEYS=1
+CROSS_COMPILE=aarch64-none-elf-
+CSS_SGI_PLATFORM_VARIANT=3
+GENERATE_COT=1
+PLAT=rdn2
+ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_rsa.pem
+TRUSTED_BOARD_BOOT=1
diff --git a/tftf_config/fvp-rdn2cfg3-default b/tftf_config/fvp-rdn2cfg3-default
new file mode 100644
index 0000000..f5bbda1
--- /dev/null
+++ b/tftf_config/fvp-rdn2cfg3-default
@@ -0,0 +1,3 @@
+CROSS_COMPILE=aarch64-none-elf-
+CSS_SGI_PLATFORM_VARIANT=3
+PLAT=rdn2