Merge bugfixes from Khronos repository am: e1c768b

Merge bugfixes from Khronos repository am: e1c768b
am: 4a7db57

* commit '4a7db57e0ccc298ee50fa9dc8a8c57a13c5dd021':
  Extend feature and limit query validation
  Add missing memory barrier to draw tests.
  Use larger threshold for EAC formats in sampler tests
  Remove test affected by cube corner texel selection issue
  Fix int->float conversion warning
  Update Vulkan framework to API 1.0.5
  Fix non-square cube image faces in dEQP-VK.image.atomic_operations.*.cube* tests
  Various fixes for synchronization tests:

Change-Id: If137fec3da91e448bd8fa8b96088624ed2387f58