Enable auto_reboot for swarm and presubmit
Enable auto_reboot for swarm and presubmit

These slaves reboot really quickly, also its causing other builders on the tryserver to not auto reboot between jobs

BUG=297972

Review URL: https://chromiumcodereview.appspot.com/25079005

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@225827 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build