Merge in changes from Khronos Vulkan CTS repository

am: 0c99420

* commit '0c99420d7150a677813efce453c33295679ac495':
  Compiler warning fix.
  Change Vulkan CTS license to Apache 2
  Fix malformed copyright boxes
  Change Vulkan CTS license to Apache 2
  Fix malformed copyright boxes
  Exclude new tests from Khronos Vulkan CTS mustpass
  Remove invalid Invocations=0 from geometry shaders.
  vktApiDeviceInitializationTests patch iteration added
  Fix createOpUndef tests.
  LOCAL_COMPATIBILITY_SUPPORT_FILES relative to $(TOP).

Change-Id: I89bb42afb6407f824eddaa59241db4bba59fc5e5