Roll src/third_party/chromite/ 8bf5a7243..a1ec7e112 (2 commits)

https://chromium.googlesource.com/chromiumos/chromite.git/+log/8bf5a724397c..a1ec7e112c5e

$ git log 8bf5a7243..a1ec7e112 --date=short --no-merges --format='%ad %ae %s'
2018-03-21 xhwang chrome-sdk: Remove Widevine CDM adapter
2018-03-17 pberny atlas: Add master builder configuration

Created with:
  roll-dep src/third_party/chromite

TBR=achuith@chromium.org,vapier@chromium.org
BUG=772160,823986

Change-Id: I12d8487657339b574b5285c6598a84e14fa4afed
Reviewed-on: https://chromium-review.googlesource.com/974798Reviewed-by: Xiaohan Wang <xhwang@chromium.org>
Commit-Queue: Xiaohan Wang <xhwang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544987}

DEPS

@@ -320,7 +320,7 @@ deps = {
 
   # Build tools for Chrome OS. Note: This depends on third_party/pyelftools.
   'src/third_party/chromite': {
-      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + '8bf5a724397cd15569d5da6a529a7b044b28d137',
+      'url': Var('chromium_git') + '/chromiumos/chromite.git' + '@' + 'a1ec7e112c5e7d0d4b24c2b98e0ad49ef1783c07',
       'condition': 'checkout_linux',
   },