build: update all-qemu.bash
build: update all-qemu.bash

nothing but GOARCH=arm makes sense.
http/cgi uses network too.

R=golang-dev, r
CC=golang-dev
http://codereview.appspot.com/4800053
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go