phosphor-fan:  Testcases for Timer class

Change-Id: Id8b752cc6e494dcf76d9668553292a65a3fd19d6
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/Makefile.am b/Makefile.am
index 61c6782..e118816 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -10,7 +10,7 @@
 	utility.cpp \
 	timer.cpp
 
-SUBDIRS = .
+SUBDIRS = . test
 
 if WANT_PRESENCE
 SUBDIRS += presence