fix(build_library): fixup naming for the pxe image
fix(build_library): fixup naming for the pxe image

based on @marineam's comments fixup the naming and ensure the output
files get picked up by the build system.

mjg59/scripts,mjg59/scripts,fivethreeo/scripts,vmware/coreos-scripts,coreos/scripts,coreos/scripts,mjg59/scripts,gtank/scripts,mischief/scripts,bcwaldon/coreos-scripts,sigma/coreos-scripts,mischief/scripts,nicescale/scripts,bcwaldon/coreos-scripts,fivethreeo/scripts,vmware/coreos-scripts,BugRoger/scripts,andrejro/coreos--scripts,marineam/coreos-scripts,marineam/coreos-scripts,andrejro/coreos--scripts,smilart/scripts,trnubo/scripts,zhang0137/scripts,glevand/coreos--scripts,vmware/coreos-scripts,nicescale/scripts,smilart/scripts,endocode/scripts,sigma/coreos-scripts,trnubo/scripts,andrejro/coreos--scripts,BugRoger/scripts,mischief/scripts,gtank/scripts,crawford/scripts,smilart/scripts,fivethreeo/scripts,zhang0137/scripts,glevand/coreos--scripts,marineam/coreos-scripts,sigma/coreos-scripts,crawford/scripts,zhang0137/scripts,crawford/scripts,endocode/scripts,gtank/scripts,trnubo/scripts,BugRoger/scripts,nicescale/scripts,bcwaldon/coreos-scripts,endocode/scripts