Roll third_party/vulkan_memory_allocator/ dac952eb0..431d6e572 (4 commits)

https://chromium.googlesource.com/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator/+log/dac952eb0a27..431d6e57284a

$ git log dac952eb0..431d6e572 --date=short --no-merges --format='%ad %ae %s'
2020-06-04 adam.sawicki Fix VmaAllocator_T::ImportVulkanFunctions_Dynamic for cases when Vulkan 1.1 is used
2020-05-25 adam.sawicki Remove invalid outdated assert in vmaBeginDefragmentationPass
2020-05-08 Adam.Sawicki Clarified documentation in few places to mention textures need to use LINEAR layout when accessed from the host
2020-05-03 hartmut.behrens fix(docs): instance not optional in quick start

Created with:
  roll-dep third_party/vulkan_memory_allocator

Bug: angleproject:4685
Change-Id: Icdc6123529971d8b7392da8d332efcc8a4873ea4
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2230902
Reviewed-by: Jamie Madill <[email protected]>
Commit-Queue: Jamie Madill <[email protected]>

Author: null77

DEPS

@@ -90,7 +90,7 @@ deps = {
   },
 
   'third_party/vulkan_memory_allocator': {
-    'url': '{chromium_git}/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator@dac952eb0a27736571bf10ac42fbfcc59192f310',
+    'url': '{chromium_git}/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator@431d6e57284aeb08118ff428dfbd51c94342faa1',
     'condition': 'not build_with_chromium',
   },