[presubmit] Use gclient_args.gni to check if checkout_android == true

Bug: 978509
Change-Id: I67b21a9d8e2276bfbf15bcd220be6cb82c949c57
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1676668
Commit-Queue: Tibor Goldschwendt <tiborg@chromium.org>
Auto-Submit: Tibor Goldschwendt <tiborg@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672157}
1 file changed