Fix LLAMA arg parsing bug in pp

[will-jl944]

Before submitting

• Lint code. If there are lint issues, please format the code first.

# Install and register `pre-commit` in the project folder
pip install pre-commit && pre-commit install

# Process previous code files separately
pre-commit run --file XXXX.py

• Add test cases into tests folder. If there are codecov issues, please add tests cases first.

PR types

Bug fixes

PR changes

Models

Description

Fix LLAMA arg parsing bug in pp

[paddle-bot]

Thanks for your contribution!