wifi: iwlwifi: mvm: allow always calling iwl_mvm_get_bss_vif()

Allow calling iwl_mvm_get_bss_vif() without getting an error
message if multiple vifs are active etc., this is much easier
than having to check beforehand (which would be effectively
the same code as the function itself.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241028135215.a343824e2c61.Ib92534f17c63630aa2eb0604fd80dbae20077487@changeid


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