libqos: include dependencies

Otherwise rebuilds can fail when libqos is modified.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372254743-15808-4-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/tests/Makefile b/tests/Makefile
index 440fe7b..55bfe24 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -228,3 +228,4 @@
 check: check-unit check-qtest
 
 -include $(wildcard tests/*.d)
+-include $(wildcard tests/libqos/*.d)