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

https://chromium.googlesource.com/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git/+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2020-05-25 adam.sawicki Remove invalid outdated assert in vmaBeginDefragmentationPass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 src/third_party/vulkan_memory_allocator

Bug: angleproject:4685
Change-Id: Id6ee6468b9ad60573c69b05d4f0f6b961aad976f
Tbr: penghuang@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2231279Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Cr-Commit-Position: refs/heads/master@{#775156}

DEPS

@@ -1412,7 +1412,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/sctplab/usrsctp' + '@' + 'a8c51df76caae94254b1e59999405f739467490e',
 
   'src/third_party/vulkan_memory_allocator':
-    Var('chromium_git') + '/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git' + '@' + 'dac952eb0a27736571bf10ac42fbfcc59192f310',
+    Var('chromium_git') + '/external/github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git' + '@' + '431d6e57284aeb08118ff428dfbd51c94342faa1',
 
   # Display server protocol for Linux.
   'src/third_party/wayland/src': {