IB/rdmavt: Add mmap related functions

The mmap data structure was moved in a previous commit. This patch now
pulls in the related functions.

Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/sw/rdmavt/vt.c

@@ -241,6 +241,7 @@ int rvt_register_device(struct rvt_dev_info *rdi)
 	}
 
 	/* Once we get past here we can use the rvt_pr macros */
+	rvt_mmap_init(rdi);
 
 	/* Dev Ops */
 	CHECK_DRIVER_OVERRIDE(rdi, query_device);