fix(setup_board): Move to new toolchain_util.sh and eselect
fix(setup_board): Move to new toolchain_util.sh and eselect

The new toolchain utils define chost, portage profiles, and portage arch
per board. Replace the tricker logic from the old platform/dev repo and
switch to setting the profile with the standard eselect tool.

A few cleanups here and there, replacing echo with info and renames.

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