Vulkan: Reformat VVL Error Message Change the error message to use the extraProperties field. Set the messageContents1 and messageContents2 to nullptr for ease of clean up later. Bug: angleproject:394598470 Change-Id: I0b7aec0b7e9a6e5206c89caae712e76db3338c4e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6581371 Auto-Submit: Yuxin Hu <yuxinhu@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>