Add TF-A test configurations

Signed-off-by: Zelalem <zelalem.aweke@arm.com>
Change-Id: Ie2fd42a804d84d751fb8ff16698fc2b9e361aa10
diff --git a/tftf_config/fvp-rdn1edge-default b/tftf_config/fvp-rdn1edge-default
new file mode 100644
index 0000000..0532d55
--- /dev/null
+++ b/tftf_config/fvp-rdn1edge-default
@@ -0,0 +1,2 @@
+CROSS_COMPILE=aarch64-none-elf-
+PLAT=rdn1edge