Extend functionality of muComb for L2multi-track muonSA
The other day, I submitted merge request for a new function of HLTMuon, L2 multi-track SA; !40821 (merged) and this MR was merged. The features of L2 multi-track SA are discussed on ATR-22537 .
The algorithm of TrigmuComb also should be changed for L2 multi-track SA and we planned to include this in the MR above, but I forgot to add. This change only affects the chain dedicated to L2 multi-track SA, and does not affect other existing chains. I have already confirmed that this change does not affect the other existing chains with trigger validation test.