Bug Fix: Updating LM prediction head model weights

Fixed a bug in our model conversion script. No change in the model itself except the LM prediction head weights.

pytorch_model.bin

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:f2067177867a2345ac5c05dc398ce9c5ba06e49a87cabe21de138eef2b02201f
-size 440472042
+oid sha256:d513412d396cecec5f67936ac871b4aaf1178dfb5193776e790fd2b28bba240c
+size 440474434