Vulkan: Update .gitignore with repo change. This was missing from a prior commit which moved the Vulkan DEPS. Bug: angleproject:2339 Change-Id: I16c2918af9396b5b935993d08d8f2ff925f3cb01 Reviewed-on: https://chromium-review.googlesource.com/909228 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>