crypto: qat - fix status check in qat_hal_put_rel_rd_xfer()

The return value of qat_hal_rd_ae_csr() is always a CSR value and never
a status and should not be stored in the status variable of
qat_hal_put_rel_rd_xfer().

This removes the assignment as qat_hal_rd_ae_csr() is not expected to
fail.
A more comprehensive handling of the theoretical corner case which could
result in a fail will be submitted in a separate patch.

Fixes: 8c9478a4 ("crypto: qat - reduce stack size with KASAN")
Signed-off-by: Jack Xu <jack.xu@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>