winsdk: Fix RT not reading versions from registry
winsdk: Fix RT not reading versions from registry

Change-Id: I44bb8c167492739467448925375ae1b99fb8a2db

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