Add TRD 22c_mcbm par files as link to 21b_mcbm (geo file fix for radlen, #2417)
Follows hint and review by @a.bercuci in #2417
Associated MRs: cbmroot_geometry!139 (merged) and computing/cbmroot!706 (merged)
Edited by Pierre-Alain Loizeau
Follows hint and review by @a.bercuci in #2417
Associated MRs: cbmroot_geometry!139 (merged) and computing/cbmroot!706 (merged)