backport PR#5767 in CMSSW_7_2_X (Addition of a parameter in HLTMuonTrkFilter to cut on absEta)

This parameter permits to cut on the AbsEta of the trackers muon at HLT
Could we set the default maximum value to 2.5 ?
 It should be high enough to reproduce the old behaviour, and it is what is used in the corresponding filter for L3 muons.