RDMA/irdma: Set the CQ read threshold for GEN 1

RDMA/irdma: Set the CQ read threshold for GEN 1

The CQ shadow read threshold is currently not set for GEN 2.  This could
cause an invalid CQ overflow condition, so remove the GEN check that
exclused GEN 1.

Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Sindhu Devale <sindhu.devale@intel.com>
Link: https://lore.kernel.org/r/20240131233849.400285-4-sindhu.devale@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>