Android: Add MIN_SDK_VERSION to BuildConfig.java

Planning to use this to restrict experimental Q features to TriChrome.

Change-Id: Id894608c123484fece733d0eb388235a7e9abaa5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1526304
Auto-Submit: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Patrick Noland <pnoland@chromium.org>
Commit-Queue: Patrick Noland <pnoland@chromium.org>
Cr-Commit-Position: refs/heads/master@{#641334}
2 files changed