vulkan: beautification changes

TODO: verify vk-layer-generate.py

TODO: need to rename object tracker generator

v2: fix "python3 vulkan.py"
    fix dead cod in tri introduced by rebase
    beautify wsi_null.c (olv)
diff --git a/icd/intel/instance.h b/icd/intel/instance.h
index b61c2ef..bb48e38 100644
--- a/icd/intel/instance.h
+++ b/icd/intel/instance.h
@@ -41,7 +41,7 @@
     bool exts[INTEL_EXT_COUNT];
 };
 
-static inline struct intel_instance *intel_instance(VK_INSTANCE instance)
+static inline struct intel_instance *intel_instance(VkInstance instance)
 {
     return (struct intel_instance *) instance;
 }