Set Update Mechanism of "Autoconf M4 macros used by Bison" Bug: chromium:422061086 Change-Id: I4ad0e678f1d8341bd22b94416aaa9929e08e7c07 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6641269 Auto-Submit: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>