staging/rdma/hfi1: Add one-time LCB reset

Add one-time LCB reset on driver load to pre-emptively work
around any LCB power cycle issues.

Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>