debugfs: add debug filesystem tests

Change-Id: Idc36627dabe5af0076fe300ee0c071dce1662a0d
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/tftf/tests/tests-debugfs.mk b/tftf/tests/tests-debugfs.mk
new file mode 100644
index 0000000..77fafd7
--- /dev/null
+++ b/tftf/tests/tests-debugfs.mk
@@ -0,0 +1,10 @@
+#
+# Copyright (c) 2019, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+TESTS_SOURCES	+=							\
+	$(addprefix tftf/tests/runtime_services/sip_service/,		\
+		test_debugfs.c					\
+	)