Roll Vulkan-ValidationLayers from c7ffe6890160 to ab73ad637606 (2 revisions)

https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-ValidationLayers/+log/c7ffe6890160..ab73ad637606

2021-01-19 s.fricke@samsung.com tests: Add inherited usage edge case
2021-01-19 s.fricke@samsung.com layers: Add inherited usage edge case

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Change-Id: Ia4fa4fd73a2453b3cf79d5979881d1a5b2fda719
Reviewed-on: https://chromium-review.googlesource.com/c/vulkan-deps/+/2636879
Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index ab46f84..a5cfeb4 100644
--- a/DEPS
+++ b/DEPS
@@ -30,7 +30,7 @@
   'vulkan_tools_revision': '7c25ce965b92d789bdc767422f2a4410c71653bb',
 
   # Current revision of Khronos Vulkan-ValidationLayers.
-  'vulkan_validation_revision': 'c7ffe68901605f3229d41a785a5ecb045260ce19',
+  'vulkan_validation_revision': 'ab73ad6376066d73c6f592aca91cb423c8abfc63',
 }
 
 deps = {