Use the new VK_LAYER_KHRONOS_validation layer

Use the new VK_LAYER_KHRONOS_validation layer

In more recent SDKs the VK_LAYER_LUNARG_standard_validation
meta layer has been replaced by the VK_LAYER_KHRONOS_validation
layer.

The latest SDK documentation about this can be found here:
https://vulkan.lunarg.com/doc/sdk/1.1.121.2/windows/validation_layers.html

It also notes that a bunch of the other individual validation layers
have also been deprecated. I've commented this fact in CTS, but
have not removed them because CTS might be used with older SDKs.

Affects all CTS with --deqp-validation=enable:

dEQP-VK.*

Components: Framework, Vulkan

VK-GL-CTS issue: -1

Change-Id: I6925f7dc55f10d7a00d1089effe491b9caebe909