iwlwifi: configure PHY version for 1000 series

We should also configure the PHY version in the
CSR_HW_IF_CONFIG_REG register for 1000 series
devices, not just for the other devices.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Wey-Yi W Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>