staging/rdma/hfi1: Fix header

Fix the header by moving the copyright notice out of the license text
and to the top of the header. Also, update the copyright date.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>