qa/workunits/rbd: add new test_librbd_api workunit

This only tests the public librbd API for use during upgrade tests.

Backport: hammer
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
(cherry picked from commit 9039955f42d01044cfcf20c56ca2181e51c317ee)

diff --git a/qa/workunits/rbd/test_librbd_api.sh b/qa/workunits/rbd/test_librbd_api.sh
new file mode 100755 (executable)
index 0000000..975144b
--- /dev/null
+++ b/qa/workunits/rbd/test_librbd_api.sh
@@ -0,0 +1,4 @@
+#!/bin/sh -e
+
+ceph_test_librbd_api
+exit 0