test-fixet: Automated VMWare test of AutoUpdate
test-fixet: Automated VMWare test of AutoUpdate

Fully automated test that uses vmplayer to test updating from
dev-channel -> image-under-test -> rollback to dev-channel.

Also, change to vmware image generation so that vmware images are
generated with two 1-GiB sized root partitions

Review URL: http://codereview.chromium.org/1512001

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