wifi: iwlwifi: mvm: advertise support for SCS traffic description

This doesn't require any special implementation from our device, just
allows transmission of SCS request frame containing a QoS
characteristics sub element.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231004123422.cc15de23b07b.I35fa1fbacf113b87ba7a13c37760f893eb57643a@changeid


Signed-off-by: Johannes Berg <johannes.berg@intel.com>