intel/genxml: Include blitter commands in gen*_pack.h

We're going to want to use the blitter again on newer hardware,
which means we need to be able to use genxml to emit those commands.

Acked-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13520>

src/intel/genxml/meson.build

@@ -54,7 +54,7 @@ foreach f : gen_xml_files + ['gen_rt.xml']
     _name,
     input : ['gen_pack_header.py', f],
     output : _name,
-    command : [prog_python, '@INPUT@'],
+    command : [prog_python, '@INPUT@', '--engines=render,blitter'],
     capture : true,
   )
 endforeach