vulkan: add API registry

Signed-off: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
diff --git a/src/Makefile.am b/src/Makefile.am
index ad54356..f1fe515 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -44,6 +44,7 @@
 
 BUILT_SOURCES = git_sha1.h
 CLEANFILES = $(BUILT_SOURCES)
+EXTRA_DIST =
 
 SUBDIRS = . gtest util mapi/glapi/gen mapi
 
@@ -117,6 +118,7 @@
 
 if HAVE_VULKAN_COMMON
 SUBDIRS += vulkan/wsi
+EXTRA_DIST += vulkan/registry/vk.xml
 endif
 
 ## Requires the i965 compiler (part of mesa) and wayland-drm
@@ -133,7 +135,7 @@
 SUBDIRS += gallium
 endif
 
-EXTRA_DIST = \
+EXTRA_DIST += \
 	getopt hgl SConscript \
 	$(top_srcdir)/include/GL/mesa_glinterop.h