Add some tests for all types of SMCs

Exercise all combinations of SMCs: fast or yielding, SMC32 or SMC64
calling convention, from a 32-bit caller or a 64-bit one.

Change-Id: I6d23549818db7f1b3fd0cb4b46e5a592b04b5289
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/tftf/tests/tests-standard.mk b/tftf/tests/tests-standard.mk
index c4d35c6..72c2ec0 100644
--- a/tftf/tests/tests-standard.mk
+++ b/tftf/tests/tests-standard.mk
@@ -16,6 +16,7 @@
 	tests-runtime-instrumentation.mk	\
 	tests-sdei.mk				\
 	tests-single-fault.mk			\
+	tests-smc.mk 				\
 	tests-spm.mk				\
 	tests-template.mk			\
 	tests-tftf-validation.mk		\