Vulkan: Roll SPIRV-Tools and SPIRV-Headers.
Vulkan: Roll SPIRV-Tools and SPIRV-Headers.

This fixes a bug in SPIRV-Tools validation. vec3s were not being packed
properly. Affected some of the more complex dEQP shader tests.

Unblocks better Debug error reporting.

Bug: angleproject:2552
Change-Id: I83447813a4ae3347157321a30a91b5dee55ff6c1
Reviewed-on: https://chromium-review.googlesource.com/1129824
Commit-Queue: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Reviewed-by: Luc Ferron <a2389c1bcb3ee32b089866e04e35d1a302020674@chromium.org>
Reviewed-by: Tobin Ehlis <c15ba1c6ec8841cd136fafb26b333b1f76c86fb4@google.com>

ppy/angle,ppy/angle,ppy/angle,ppy/angle