Vulkan: Fix missing deepCopy() from dFdy transform Bug: angleproject:2733 Change-Id: Id1375618e6d91eb1d577abf2f8c707a63ab17b57 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1767364 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>