feat(rd1ae): Add build configurations

This patch adds build configuration for rd1ae platform

Change-Id: Id168faa62c911b2bc91a7d547a99455225109f8a
Signed-off-by: Divin Raj <divin.raj@arm.com>
diff --git a/tf_config/rd1ae-default b/tf_config/rd1ae-default
new file mode 100644
index 0000000..1ea4442
--- /dev/null
+++ b/tf_config/rd1ae-default
@@ -0,0 +1,7 @@
+PLAT=rd1ae
+ARM_ROTPK_LOCATION=devel_rsa
+CROSS_COMPILE=aarch64-none-elf-
+GENERATE_COT=1
+COT=tbbr
+ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_rsa.pem
+TRUSTED_BOARD_BOOT=1