Address Phi modeling update 2

[huiwy]

Fixed variable name and weight name mismatch mentioned in #2383.

[simon-mo]

Thanks for fixing this! I have tested phi 1, 1.5, and 2.

curl http://localhost:8000/v1/completions \
    -H "Content-Type: application/json" \
    -d '{
        "model": "microsoft/phi-1_5",
        "prompt": "San Francisco is a",
        "max_tokens": 20,
        "temperature": 0
    }'
{"id":"cmpl-dc39c048711b453fb0e5e5930b0501a1","object":"text_completion","created":82988,"model":"microsoft/phi-1_5","choices":[{"index":0,"text":" city that has a lot of history and culture. It has a lot of buildings and monuments that tell","logprobs":null,"finish_reason":"length"}],"usage":{"prompt_tokens":4,"total_

(base) xmo@simon-devbox:~$ curl http://localhost:8000/v1/completions     -H "Content-Type: application/json"     -d '{
        "model": "microsoft/phi-2",
        "prompt": "San Francisco is a",
        "max_tokens": 20,
        "temperature": 0
    }'
{"id":"cmpl-0cca6c5891f64b1bb312553341c3505f","object":"text_completion","created":83037,"model":"microsoft/phi-2","choices":[{"index":0,"text":" city that is known for its diverse population and vibrant culture. However, it is also a city that","logprobs":null,"finish_reason":"length"}],"usage":{"prompt_tokens":4,"total_tokens":24,"completion_tokens":20}}

(base) xmo@simon-devbox:~$ curl http://loctent-Type: application/json"     -d '{t
        "model": "microsoft/phi-1",
        "prompt": "San Francisco is a",
        "max_tokens": 20,
        "temperature": 0
    }'
{"id":"cmpl-d218bd0bbcfc4b97bdb107382fb42281","object":"text_completion","created":83158,"model":"microsoft/phi-1","choices":[{"index":0,"text":" city located on the intersection of New York City and Los Angeles. It is located in the vicinity of","logprobs":null,"finish_reason":"length"}],"usage":{"prompt_tokens":4,"total_tokens":24,"completion_tokens":20}}(base) xmo@simon-devbox:~$

[simon-mo]

Please fix the formatting by running ./format.sh --all. It seems I can't directly push the change here because it's your main branch.