Fix generate_build_files for Android q builders

Check against android_sdk_release instead of sdk_version, which is not
always defined.

Bug: 912353
Change-Id: Ic14b89a7d7491893497e549eac82049f75fa7c19
Reviewed-on: https://chromium-review.googlesource.com/c/1364213
Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Patrick Noland <pnoland@chromium.org>
Cr-Commit-Position: refs/heads/master@{#614172}
1 file changed