add test-coroutine to checks

There is a "test-coroutine" which isn't in the list.
Add it so "make check" runs it too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

configure

diff --git a/configure b/configure
index d18c8ad..28667fe 100755
--- a/configure
+++ b/configure
@@ -2669,7 +2669,7 @@
     fi
     if [ "$check_utests" = "yes" ]; then
       checks="check-qint check-qstring check-qdict check-qlist"
-      checks="check-qfloat check-qjson $checks"
+      checks="check-qfloat check-qjson test-coroutine $checks"
     fi
   fi
 fi