Vulkan: Dynamic state for depth bias enable Bug: angleproject:5906 Change-Id: I679a764e0a9ef74cc8a58f9061b42c0aaef56df2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3651592 Reviewed-by: Yuxin Hu <yuxinhu@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>