IB/hfi1: Move UnsupportedVL bits definitions to the correct header

The UnsupportedVL SendCtrl register bit information is defined in
the module rather than the chip register header file.

Move the defines to the appropriate header file.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>