staging/rdma/hfi1: diag.c fix logical continuations

Place logical operators at the end of the previous line when using a multi-line
statement.  Found by checkpatch --strict

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>