repo: Clang-format LVL source files using Google

Switch clang-format standard from the LLVM style to the
Google style for more consistency.

Change-Id: I247c4abc275d7873a91522e1e234198adaa24033
diff --git a/layers/vk_layer_extension_utils.h b/layers/vk_layer_extension_utils.h
index b593768..4a51c16 100644
--- a/layers/vk_layer_extension_utils.h
+++ b/layers/vk_layer_extension_utils.h
@@ -36,5 +36,5 @@
 VK_LAYER_EXPORT VkResult util_GetLayerProperties(const uint32_t count, const VkLayerProperties *layer_properties, uint32_t *pCount,
                                                  VkLayerProperties *pProperties);
 
-} // extern "C"
-#endif // LAYER_EXTENSION_UTILS_H
+}  // extern "C"
+#endif  // LAYER_EXTENSION_UTILS_H