build: add build of empty tests

Add tests to the build.

Change-Id: Ic12b5eee708a3ec8e16d997f2a7d18adec2c779d
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/test/Makefile.am b/test/Makefile.am
new file mode 100644
index 0000000..3a400d5
--- /dev/null
+++ b/test/Makefile.am
@@ -0,0 +1,4 @@
+
+
+check_PROGRAMS =
+TESTS = $(check_PROGRAMS)