layers: Invert old 'pass' checks for shader validation
layers: Invert old 'pass' checks for shader validation

Make this consistent with everything else, which uses 'skip'.

KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers