feat(ltx2): add sharding section to config

Author: Perseus14

src/maxdiffusion/configs/ltx2_video.yml

@@ -64,6 +64,11 @@ logical_axis_rules: [
                     ]
 data_sharding: ['data', 'fsdp', 'context', 'tensor']
 
+sharding:
+  transformer: 'default'
+  vae: 'default'
+  text_encoder: 'default'
+
 dcn_data_parallelism: 1  # recommended DCN axis to be auto-sharded
 dcn_fsdp_parallelism: -1