feat(ras): test to verify SErros synchronized at EL3 boundry

Tests to verify SErrors which gets triggered as part of error
synchronization at EL3 entry.
In FFH mode, EL3 does nested exception handling while in KFH it
reflectes it back to TF-A Tests.

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I5a980ed49ee47ea2f0d5685ba8378d48393ad157
diff --git a/tftf/tests/tests-ras-ffh-nested.mk b/tftf/tests/tests-ras-ffh-nested.mk
new file mode 100644
index 0000000..1adcf80
--- /dev/null
+++ b/tftf/tests/tests-ras-ffh-nested.mk
@@ -0,0 +1,10 @@
+#
+# Copyright (c) 2023, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+TESTS_SOURCES	+=	$(addprefix tftf/tests/misc_tests/,		\
+	inject_ras_error.S 						\
+	test_ras_ffh_nested.c						\
+)