Vulkan: Mipmap is unconditionally enabled in ANGLE ANGLE always enables the Mipmap. The fix does redefining the image with mipmaps and replace the origin one only when it is necessary. Bug: angleproject:3737 Change-Id: Ia33a16fd7feae303fb114988059c4eec58c4232d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1750627 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Ian Elliott <ianelliott@google.com>