Roll src/third_party/chromite/ 7cc5681da..49edad6de (9 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/7cc5681dafff..49edad6de211

$ git log 7cc5681da..49edad6de --date=short --no-merges --format='%ad %ae %s'
2017-12-11 xixuan cbuildbot: enable fast=True for CQ jobs.
2017-12-07 stevenjb cros chrome-sdk: Make gn-gen the default
2017-12-07 harpreet cbuildbot: add more devices to wificell-pre-cq
2017-12-11 chrome-bot Update config settings by config-updater.
2017-12-06 yunlian chrome_sdk: Disable thinlto on SimpleChrome
2017-11-28 achuith [cros_run_vm_test]: Support for autotest.
2017-10-18 achuith [cros_vm]: Options to run unittests on cros VM.
2017-12-08 chrome-bot Update config settings by config-updater.
2017-12-08 dgarrett scheduler_stages: Fix release waterfall builder names.

Created with:
  roll-dep src/third_party/chromite chromiumos/chromite.git

Bug: 762650
Change-Id: Iead7faad5088249bd388b6dd80593d6a3ab4c024
Reviewed-on: https://chromium-review.googlesource.com/820597
Commit-Queue: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Achuith Bhandarkar <achuith@chromium.org>
Reviewed-by: Achuith Bhandarkar <achuith@chromium.org>
Cr-Commit-Position: refs/heads/master@{#523301}

DEPS

@@ -298,7 +298,7 @@ deps = {
 
   # Build tools for Chrome OS. Note: This depends on third_party/pyelftools.
   'src/third_party/chromite': {
-      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '7cc5681dafff1c16bab701fd74a2ca0511f0d8d7',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '49edad6de211c0a12f1cd05f0182841477e0b21b',
       'condition': 'checkout_linux',
   },