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-standard.mk b/tftf/tests/tests-standard.mk
index 9ef75bb..97d530f 100644
--- a/tftf/tests/tests-standard.mk
+++ b/tftf/tests/tests-standard.mk
@@ -21,6 +21,7 @@
 	tests-tftf-validation.mk		\
 	tests-tsp.mk				\
 	tests-uncontainable.mk			\
+	tests-debugfs.mk                        \
 )
 
 include ${TESTS_MAKEFILE}