vulkan: Add header support for gpdp2

Change-Id: I60881a66dba693cf8d16fe0d3a19e517b6bdcf24
Test: build, run cube demo
diff --git a/vulkan/libvulkan/api_gen.cpp b/vulkan/libvulkan/api_gen.cpp
index d70135b..ca2a579 100644
--- a/vulkan/libvulkan/api_gen.cpp
+++ b/vulkan/libvulkan/api_gen.cpp
@@ -453,13 +453,20 @@
         "vkGetInstanceProcAddr",
         "vkGetPhysicalDeviceExternalImageFormatPropertiesNV",
         "vkGetPhysicalDeviceFeatures",
+        "vkGetPhysicalDeviceFeatures2KHR",
         "vkGetPhysicalDeviceFormatProperties",
+        "vkGetPhysicalDeviceFormatProperties2KHR",
         "vkGetPhysicalDeviceGeneratedCommandsPropertiesNVX",
         "vkGetPhysicalDeviceImageFormatProperties",
+        "vkGetPhysicalDeviceImageFormatProperties2KHR",
         "vkGetPhysicalDeviceMemoryProperties",
+        "vkGetPhysicalDeviceMemoryProperties2KHR",
         "vkGetPhysicalDeviceProperties",
+        "vkGetPhysicalDeviceProperties2KHR",
         "vkGetPhysicalDeviceQueueFamilyProperties",
+        "vkGetPhysicalDeviceQueueFamilyProperties2KHR",
         "vkGetPhysicalDeviceSparseImageFormatProperties",
+        "vkGetPhysicalDeviceSparseImageFormatProperties2KHR",
         "vkGetPhysicalDeviceSurfaceCapabilitiesKHR",
         "vkGetPhysicalDeviceSurfaceFormatsKHR",
         "vkGetPhysicalDeviceSurfacePresentModesKHR",