Fix GOROOT in main-bosh-docker image
Fix GOROOT in main-bosh-docker image

Caused by 90d689b which accidentally installed go to /usr/local

Signed-off-by: James Young <9a444a4c06c3f9735f2e8ac5c0dcccd82c90ce93@pivotal.io>

barthy1/bosh,barthy1/bosh,barthy1/bosh,barthy1/bosh