changes for running on ppc64 with gccgo

I have a couple of changes for running the go bosh agent on Power8 Ubuntu LE. Please review.
the bosh_micro_go stage starts the bosh agent on the ubuntu platform, see 
stemcell_builder/stages/bosh_micro_go/assets/configure.sh line number 58:
/var/vcap/bosh/bin/bosh-agent -I dummy -P ubuntu -M dummy &