tests: Add EID addressing test

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
diff --git a/Makefile b/Makefile
index bdfe6a0..6a7c46b 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,7 @@
 
 test_util_objs = tests/test-utils.o
 
-tests =
+tests = test_eid
 
 test_targets = $(tests:%=tests/%)