RDMA/irdma: remove extraneous indentation on a statement

A single statement is indented one level too deeply, clean up the
code by removing the extraneous tab.

Link: https://lore.kernel.org/r/20210605130400.25987-1-colin.king@canonical.comSigned-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>