winsdk: Fix missing file extension in runtime
winsdk: Fix missing file extension in runtime

Change-Id: I251663fb2932823d387af11e94bcd1e2586e0772

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