loader: Add support for NV device extension

Added vkGetMemoryWin32HandleNV from the VK_NV_external_memory_win32
extension to the loader.

Change-Id: If6a959f126cc48ebf2608ed6e113e2883deae871
diff --git a/loader/table_ops.h b/loader/table_ops.h
index 014607a..5a9abf1 100644
--- a/loader/table_ops.h
+++ b/loader/table_ops.h
@@ -272,6 +272,10 @@
     table->CmdDrawIndexedIndirectCountAMD =
         (PFN_vkCmdDrawIndexedIndirectCountAMD)gpa(
             dev, "vkCmdDrawIndexedIndirectCountAMD");
+#ifdef VK_USE_PLATFORM_WIN32_KHR
+    table->GetMemoryWin32HandleNV =
+        (PFN_vkGetMemoryWin32HandleNV)gpa(dev, "vkGetMemoryWin32HandleNV");
+#endif // VK_USE_PLATFORM_WIN32_KHR
 }
 
 static inline void *