[PATCH 6.1 0/1] octeontx2-af: Add validation of lmac

With the addition of new MAC blocks like CN10K RPM and CN10KB RPM_USX, LMACs are noncontiguous. Though in most of the functions, lmac validation checks exist but in few functions they are missing. The problem has been fixed by the following patch which can be cleanly applied to the 6.1.y branch.