Roll third_party/spirv-tools/src 4af38c49bfee..538512e8e898 (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/4af38c49bfee..538512e8e898


Created with:
  gclient setdep -r third_party/spirv-tools/src@538512e8e898

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/spirv-tools-angle-autoroll
Please CC jonahr@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

Bug: None
Tbr: jonahr@google.com
Change-Id: If471dca9184dd7fb9c49678b7f37ff1bc9a5635c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2141834
Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 1f56584..f18c905 100644
--- a/DEPS
+++ b/DEPS
@@ -46,7 +46,7 @@
   'spirv_headers_revision': 'f8bf11a0253a32375c32cad92c841237b96696c0',
 
   # Current revision of SPIRV-Tools for Vulkan.
-  'spirv_tools_revision': '4af38c49bfeeac536b9bf9b25be2d4bbec356972',
+  'spirv_tools_revision': '538512e8e8980cc01ab6501cd1cbd402d54f8491',
 
   # Current revision of Khronos Vulkan-Headers.
   'vulkan_headers_revision': 'b4b0f994204e4fd1223260856a9fb4b738ed6b4e',