wifi: iwlwifi: mvm: scan legacy bands and UHB channels with same antenna

In case of UHB scan that follows a scan on legacy bands,
consider both scan commands as part of the same scan cycle,
and thus configure them to use the same antenna configuration.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230413213309.fd582c423ad8.I35239f94cb3ee1642d16936199c336a07ec2df8f@changeid


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