Fix L3RequestReference::text when mT3 < mT2
Fix L3RequestReference::text when mT3 < mT2

WindyCitySDR/openbts,WindyCitySDR/openbts,WindyCitySDR/openbts,endaga/openbts,endaga/openbts,endaga/openbts,endaga/openbts,WindyCitySDR/openbts,WindyCitySDR/openbts,endaga/openbts