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>
diff --git a/.gitignore b/.gitignore
index 78635bc..cf32de9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,13 +26,13 @@
 /third_party/cherry
 /third_party/deqp/src
 /third_party/gles1_conform
-/third_party/glslang-angle/src
+/third_party/glslang/src
 /third_party/googletest/src
 /third_party/gyp
 /third_party/libpng/src
 /third_party/llvm-build
 /third_party/spirv-headers/src
-/third_party/spirv-tools-angle/src
+/third_party/spirv-tools/src
 /third_party/vulkan-validation-layers/src
 /third_party/zlib
 angle_internal