https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-Loader.git/+log/8e2b7d03ccfd..8308d6744d50

2020-10-28 shabbyx@gmail.com Generate libvulkan.so.1 on Linux instead of libvulkan.so
2020-10-27 shannon@lunarg.com build: Update known-good files for 1.2.158 header

Bug: angleproject:5216
Change-Id: I74e10c44950f3be05cc12f22b44f1627af08ca81
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2506196Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>