Roll third_party/vulkan_memory_allocator/ dac952eb0..431d6e572 (4 commits)
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2020-05-25 adam.sawicki Remove invalid outdated assert in vmaBeginDefragmentationPass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 <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Commit-Queue: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

ppy/angle,ppy/angle,ppy/angle,ppy/angle