blorp: automake: add TODO to the tarball

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Andreas Boll <andreas.boll.dev@gmail.com>

src/intel/Makefile.blorp.am

@@ -22,3 +22,5 @@
 noinst_LTLIBRARIES += blorp/libblorp.la
 
 blorp_libblorp_la_SOURCES = $(BLORP_FILES)
+
+EXTRA_DIST += blorp/TODO