meson: wire the new generator for es1 and es2

v2: use ${foo})_py naming (Dylan)
v3: use symbolic name for genCommon.py

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com> (v2)

src/mapi/es2api/meson.build

@@ -20,10 +20,10 @@
 
 es2_glapi_mapi_tmp_h = custom_target(
   'es2_glapi_mapi_tmp.h',
-  input : [mapi_abi_py, gl_and_es_api_files],
+  input : [glapi_gen_mapi_py, glapi_gen_gl_xml],
   output : 'glapi_mapi_tmp.h',
-  command : [prog_python, '@INPUT0@', '--printer', 'es2api', '@INPUT1@'],
-  depend_files : api_xml_files,
+  command : [prog_python, '@INPUT0@', 'glesv2', '@INPUT1@'],
+  depend_files : glapi_gen_mapi_deps,
   capture : true,
 )