Add GCC_ARM export for TEENSY3_1
Add GCC_ARM export for TEENSY3_1

To reflect support for GCC_ARM export for TEENSY3_1
K4zuki/mbed,fpiot/mbed-ats,larks/mbed,autopulated/mbed,brstew/MBED-BUILD,brstew/MBED-BUILD,jferreir/mbed,jamesadevine/mbed,monkiineko/mbed-os,pi19404/mbed,xcrespo/mbed,pradeep-gr/mbed-os5-onsemi,HeadsUpDisplayInc/mbed,fvincenzo/mbed-os,jferreir/mbed,DanKupiniak/mbed,struempelix/mbed,fpiot/mbed-ats,svastm/mbed,nvlsianpu/mbed,YarivCol/mbed-os,al177/mbed,karsev/mbed-os,mikaleppanen/mbed-os,nRFMesh/mbed-os,bulislaw/mbed-os,brstew/MBED-BUILD,arostm/mbed-os,nabilbendafi/mbed,fanghuaqi/mbed,HeadsUpDisplayInc/mbed,andreaslarssonublox/mbed,rosterloh/mbed,bentwire/mbed,screamerbg/mbed,ban4jp/mbed,wodji/mbed,NXPmicro/mbed,maximmbed/mbed,kjbracey-arm/mbed,cvtsi2sd/mbed-os,j-greffe/mbed-os,xcrespo/mbed,larks/mbed,pradeep-gr/mbed-os5-onsemi,hwfwgrp/mbed,bikeNomad/mbed,kpurusho/mbed,brstew/MBED-BUILD,netzimme/mbed-os,bikeNomad/mbed,ban4jp/mbed,jferreir/mbed,HeadsUpDisplayInc/mbed,wodji/mbed,catiedev/mbed-os,masaohamanaka/mbed,Archcady/mbed-os,masaohamanaka/mbed,netzimme/mbed-os,Shengliang/mbed,Archcady/mbed-os,dbestm/mbed,arostm/mbed-os,ryankurte/mbed-os,cvtsi2sd/mbed-os,adamgreen/mbed,jeremybrodt/mbed,bentwire/mbed,nRFMesh/mbed-os,mazimkhan/mbed-os,bcostm/mbed-os,devanlai/mbed,EmuxEvans/mbed,kl-cruz/mbed-os,YarivCol/mbed-os,betzw/mbed-os,bentwire/mbed,netzimme/mbed-os,ryankurte/mbed-os,mbedmicro/mbed,pradeep-gr/mbed-os5-onsemi,svastm/mbed,andcor02/mbed-os,dbestm/mbed,theotherjimmy/mbed,NXPmicro/mbed,struempelix/mbed,nRFMesh/mbed-os,karsev/mbed-os,jferreir/mbed,YarivCol/mbed-os,cvtsi2sd/mbed-os,adustm/mbed,Timmmm/mbed,RonEld/mbed,j-greffe/mbed-os,adamgreen/mbed,mazimkhan/mbed-os,hwfwgrp/mbed,Archcady/mbed-os,devanlai/mbed,mazimkhan/mbed-os,screamerbg/mbed,maximmbed/mbed,maximmbed/mbed,fahhem/mbed-os,jpbrucker/mbed,adamgreen/mbed,rosterloh/mbed,c1728p9/mbed-os,bcostm/mbed-os,monkiineko/mbed-os,getopenmono/mbed,fvincenzo/mbed-os,mnlipp/mbed,autopulated/mbed,kpurusho/mbed,bulislaw/mbed-os,devanlai/mbed,Archcady/mbed-os,hwfwgrp/mbed,struempelix/mbed,ARM-software/mbed-beetle,rgrover/mbed,rgrover/mbed,mmorenobarm/mbed-os,tung7970/mbed-os,kl-cruz/mbed-os,jamesadevine/mbed,mnlipp/mbed,infinnovation/mbed-os,fanghuaqi/mbed,jamesadevine/mbed,adustm/mbed,YarivCol/mbed-os,EmuxEvans/mbed,mmorenobarm/mbed-os,xcrespo/mbed,theotherjimmy/mbed,catiedev/mbed-os,K4zuki/mbed,getopenmono/mbed,c1728p9/mbed-os,svogl/mbed-os,j-greffe/mbed-os,kl-cruz/mbed-os,Shengliang/mbed,al177/mbed,catiedev/mbed-os,adustm/mbed,andreaslarssonublox/mbed,jamesadevine/mbed,pedromes/mbed,getopenmono/mbed,svogl/mbed-os,mbedmicro/mbed,catiedev/mbed-os,dbestm/mbed,geky/mbed,monkiineko/mbed-os,arostm/mbed-os,hwfwgrp/mbed,DanKupiniak/mbed,theotherjimmy/mbed,jeremybrodt/mbed,rgrover/mbed,svastm/mbed,bentwire/mbed,bikeNomad/mbed,mbedmicro/mbed,c1728p9/mbed-os,jeremybrodt/mbed,DanKupiniak/mbed,adamgreen/mbed,nabilbendafi/mbed,wodji/mbed,cvtsi2sd/mbed-os,NXPmicro/mbed,Shengliang/mbed,tung7970/mbed-os-1,HeadsUpDisplayInc/mbed,andreaslarssonublox/mbed,karsev/mbed-os,Archcady/mbed-os,struempelix/mbed,radhika-raghavendran/mbed-os5.1-onsemi,autopulated/mbed,radhika-raghavendran/mbed-os5.1-onsemi,hwfwgrp/mbed,EmuxEvans/mbed,masaohamanaka/mbed,al177/mbed,fanghuaqi/mbed,pedromes/mbed,mmorenobarm/mbed-os,kl-cruz/mbed-os,Shengliang/mbed,netzimme/mbed-os,radhika-raghavendran/mbed-os5.1-onsemi,betzw/mbed-os,CalSol/mbed,betzw/mbed-os,mikaleppanen/mbed-os,pbrook/mbed,maximmbed/mbed,rosterloh/mbed,fahhem/mbed-os,catiedev/mbed-os,mnlipp/mbed,masaohamanaka/mbed,pi19404/mbed,ryankurte/mbed-os,pedromes/mbed,devanlai/mbed,andcor02/mbed-os,theotherjimmy/mbed,ban4jp/mbed,maximmbed/mbed,geky/mbed,jamesadevine/mbed,pedromes/mbed,pi19404/mbed,RonEld/mbed,radhika-raghavendran/mbed-os5.1-onsemi,svastm/mbed,infinnovation/mbed-os,CalSol/mbed,j-greffe/mbed-os,EmuxEvans/mbed,tung7970/mbed-os,jrjang/mbed,geky/mbed,pi19404/mbed,struempelix/mbed,karsev/mbed-os,karsev/mbed-os,andcor02/mbed-os,jrjang/mbed,karsev/mbed-os,CalSol/mbed,fahhem/mbed-os,pbrook/mbed,al177/mbed,pradeep-gr/mbed-os5-onsemi,andreaslarssonublox/mbed,jpbrucker/mbed,jeremybrodt/mbed,j-greffe/mbed-os,betzw/mbed-os,tung7970/mbed-os-1,kpurusho/mbed,mbedmicro/mbed,betzw/mbed-os,pbrook/mbed,NXPmicro/mbed,jpbrucker/mbed,nRFMesh/mbed-os,autopulated/mbed,dbestm/mbed,bulislaw/mbed-os,Tiryoh/mbed,kjbracey-arm/mbed,bulislaw/mbed-os,bcostm/mbed-os,kjbracey-arm/mbed,fvincenzo/mbed-os,getopenmono/mbed,YarivCol/mbed-os,mazimkhan/mbed-os,RonEld/mbed,nabilbendafi/mbed,nvlsianpu/mbed,xcrespo/mbed,theotherjimmy/mbed,mnlipp/mbed,fpiot/mbed-ats,larks/mbed,YarivCol/mbed-os,ARM-software/mbed-beetle,nabilbendafi/mbed,adustm/mbed,jrjang/mbed,mikaleppanen/mbed-os,kpurusho/mbed,bentwire/mbed,jpbrucker/mbed,ban4jp/mbed,masaohamanaka/mbed,adustm/mbed,bulislaw/mbed-os,ARM-software/mbed-beetle,jamesadevine/mbed,fpiot/mbed-ats,getopenmono/mbed,K4zuki/mbed,rosterloh/mbed,jpbrucker/mbed,nvlsianpu/mbed,geky/mbed,andcor02/mbed-os,geky/mbed,ryankurte/mbed-os,K4zuki/mbed,al177/mbed,tung7970/mbed-os-1,rgrover/mbed,nabilbendafi/mbed,kl-cruz/mbed-os,pedromes/mbed,larks/mbed,fpiot/mbed-ats,bulislaw/mbed-os,RonEld/mbed,kpurusho/mbed,devanlai/mbed,K4zuki/mbed,bikeNomad/mbed,wodji/mbed,arostm/mbed-os,NXPmicro/mbed,andreaslarssonublox/mbed,jpbrucker/mbed,ARM-software/mbed-beetle,xcrespo/mbed,screamerbg/mbed,pi19404/mbed,tung7970/mbed-os,Tiryoh/mbed,mnlipp/mbed,kl-cruz/mbed-os,Timmmm/mbed,bcostm/mbed-os,cvtsi2sd/mbed-os,mikaleppanen/mbed-os,maximmbed/mbed,nRFMesh/mbed-os,screamerbg/mbed,screamerbg/mbed,masaohamanaka/mbed,betzw/mbed-os,Archcady/mbed-os,al177/mbed,monkiineko/mbed-os,ban4jp/mbed,HeadsUpDisplayInc/mbed,svogl/mbed-os,autopulated/mbed,netzimme/mbed-os,bcostm/mbed-os,infinnovation/mbed-os,RonEld/mbed,adustm/mbed,Tiryoh/mbed,Timmmm/mbed,pradeep-gr/mbed-os5-onsemi,kpurusho/mbed,larks/mbed,fahhem/mbed-os,DanKupiniak/mbed,svogl/mbed-os,monkiineko/mbed-os,monkiineko/mbed-os,jferreir/mbed,RonEld/mbed,rosterloh/mbed,Tiryoh/mbed,mbedmicro/mbed,Tiryoh/mbed,fpiot/mbed-ats,pbrook/mbed,screamerbg/mbed,jferreir/mbed,nRFMesh/mbed-os,fahhem/mbed-os,j-greffe/mbed-os,nvlsianpu/mbed,adamgreen/mbed,infinnovation/mbed-os,andcor02/mbed-os,Timmmm/mbed,EmuxEvans/mbed,pedromes/mbed,pbrook/mbed,nvlsianpu/mbed,infinnovation/mbed-os,svogl/mbed-os,arostm/mbed-os,EmuxEvans/mbed,svogl/mbed-os,mnlipp/mbed,mmorenobarm/mbed-os,bikeNomad/mbed,ryankurte/mbed-os,CalSol/mbed,bentwire/mbed,CalSol/mbed,kjbracey-arm/mbed,mazimkhan/mbed-os,Timmmm/mbed,wodji/mbed,fahhem/mbed-os,jrjang/mbed,larks/mbed,HeadsUpDisplayInc/mbed,Shengliang/mbed,jeremybrodt/mbed,tung7970/mbed-os-1,jrjang/mbed,Timmmm/mbed,pbrook/mbed,radhika-raghavendran/mbed-os5.1-onsemi,pi19404/mbed,tung7970/mbed-os,radhika-raghavendran/mbed-os5.1-onsemi,c1728p9/mbed-os,c1728p9/mbed-os,netzimme/mbed-os,infinnovation/mbed-os,hwfwgrp/mbed,dbestm/mbed,andcor02/mbed-os,brstew/MBED-BUILD,arostm/mbed-os,pradeep-gr/mbed-os5-onsemi,jrjang/mbed,svastm/mbed,cvtsi2sd/mbed-os,mikaleppanen/mbed-os,Tiryoh/mbed,mmorenobarm/mbed-os,struempelix/mbed,NXPmicro/mbed,c1728p9/mbed-os,wodji/mbed,brstew/MBED-BUILD,CalSol/mbed,fvincenzo/mbed-os,ryankurte/mbed-os,mmorenobarm/mbed-os,theotherjimmy/mbed,rosterloh/mbed,ban4jp/mbed,bcostm/mbed-os,nvlsianpu/mbed,xcrespo/mbed,Shengliang/mbed,nabilbendafi/mbed,tung7970/mbed-os-1,fanghuaqi/mbed,mikaleppanen/mbed-os,rgrover/mbed,tung7970/mbed-os,devanlai/mbed,autopulated/mbed,adamgreen/mbed,getopenmono/mbed,catiedev/mbed-os,fanghuaqi/mbed,mazimkhan/mbed-os,dbestm/mbed,K4zuki/mbed,fvincenzo/mbed-os