Roll src/third_party/SPIRV-Tools/src 575af7ecfc21..90a12b3d4d1d (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/575af7ecfc21..90a12b3d4d1d


git log 575af7ecfc21..90a12b3d4d1d --date=short --no-merges --format='%ad %ae %s'
2018-09-22 alanbaker@google.com Decoration validation for Vulkan memory model
2018-09-22 alanbaker@google.com Validate vulkan mem model capabilty


Created with:
  gclient setdep -r src/third_party/SPIRV-Tools/src@90a12b3d4d1d

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-tools-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=dsinclair@chromium.org

Change-Id: Ida46ddd3a867db7a96ad07046f0a9937f34ecca1
Reviewed-on: https://chromium-review.googlesource.com/1238990Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#593426}

DEPS

@@ -213,7 +213,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'spv_tools_revision': '575af7ecfc21ca88fcd291f19ab726c1abad043d',
+  'spv_tools_revision': '90a12b3d4d1d589b3d61c194f983eb9c22459226',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.