vulkan: update Vulkan headers to 1.0.46

- Add VK_EXT_swapchain_colorspace
- Add VK_KHR_incremental_present

Test: build aosp_arm64-eng
Change-Id: I6cd81baa2870bf436abab6191a05ebfd60ccbc46
Merged-In: I70ffd56a63da39301cd9706b1b91cf3643aab916
diff --git a/vulkan/libvulkan/api_gen.cpp b/vulkan/libvulkan/api_gen.cpp
index 7610c01..ea6fadc 100644
--- a/vulkan/libvulkan/api_gen.cpp
+++ b/vulkan/libvulkan/api_gen.cpp
@@ -110,7 +110,7 @@
 
 // clang-format on
 
-}  // anonymous
+}  // namespace
 
 bool InitDispatchTable(
     VkInstance instance,