RDMA/irdma: Use the queried port attributes

Instead of hard code the gid_table_len value, use the value from the
ib_query_port() attributes.

Fixes: b48c24c2 ("RDMA/irdma: Implement device supported verb APIs")
Link: https://lore.kernel.org/r/20210620201503.67055-1-kamalheib1@gmail.com


Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Acked-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>