set gpt_j_tied to true so that 20B inference works again

[chuanli11]

gpt_j_tied=false will cause 20B model generate gibberish results. This is reported here and here.

The source of the problem is this commit.

To reproduce, run ./deepy.py generate.py ./configs/20B.yml

"gpt_j_tied": false

{"context": "", "text": " de de general de general de2a1a\u00ada\u00ada\u00ada\u00ada\u00ada\u00ada\u00ado\u00ado\u00ado\u00ado\u00ado\u00ado\u00ado\u00ado\u00ado\u00ado3\u00ado\u00ado3\u00ado3\u00ado3\u00ado\u00ado\u00ado\u00ado\u00ado", "length": 64, "finished": false, "message": null, "duration_seconds": 4.648434400558472}

"gpt_j_tied": true

{"context": "", "text": "Q:\n\nHow to get the value of a variable in a function in a different file?\n\nI have a file called \"main.py\" and a file called \"functions.py\".\nIn \"main.py\" I have:\nfrom functions import *\n\ndef main():\n    print", "length": 64, "finished": false, "message": null, "duration_seconds": 4.764044523239136}

[StellaAthena]

Wow, what an incredibly silly oversight. Thank you for chasing this down.

[chuanli11]

Thanks for merging it. @StellaAthena