Hints for firmware-iwlwifi in non-free-firmware

Hints

• asv-summary-has-dot-suffix
  :5 - Binary firmware for Intel Wireless cards supported by the iwl3945, iwl4965, and iwlwifi drivers.
  The component summary should not end with a dot (`.`).
• asv-driver-firmware-description-missing
  -
  It is recommended to add a long description to this component to present it better to users.