IB/rdmavt: Add mmap stub

Adds the stub for the mmap verbs call.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/sw/rdmavt/vt.h b/drivers/infiniband/sw/rdmavt/vt.h
index 02e1212..6a5f5bf 100644
--- a/drivers/infiniband/sw/rdmavt/vt.h
+++ b/drivers/infiniband/sw/rdmavt/vt.h
@@ -56,5 +56,6 @@
 #include "mr.h"
 #include "srq.h"
 #include "mcast.h"
+#include "mmap.h"
 
 #endif          /* DEF_RDMAVT_H */