I have updated the correct case for Mpt and MptConfig.

I have updated the correct case for AutoModelForCausalLM and AutoConfig.
In the transformer version it is class transformers.MptConfig and transformers.MptForCausalLM. So updated the correct case

config.json

@@ -16,8 +16,8 @@
     "softmax_scale": null
   },
   "auto_map": {
-    "AutoConfig": "mosaicml/mpt-7b--configuration_mpt.MPTConfig",
-    "AutoModelForCausalLM": "mosaicml/mpt-7b--modeling_mpt.MPTForCausalLM"
+    "AutoConfig": "mosaicml/mpt-7b--configuration_mpt.MptConfig",
+    "AutoModelForCausalLM": "mosaicml/mpt-7b--modeling_mpt.MptForCausalLM"
   },
   "d_model": 128,
   "emb_pdrop": 0,