[LLM] Add deepseekv2

[DrownFish19]

PR types

New features

PR changes

Models

Description

Add deepseekv2.

[paddle-bot]

Thanks for your contribution!

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

Attention: Patch coverage is 14.89583% with 817 lines in your changes missing coverage. Please review.

Project coverage is 52.60%. Comparing base (2b975b1) to head (3b69adc).
Report is 266 commits behind head on develop.

Files with missing lines	Patch %	Lines
paddlenlp/transformers/deepseek_v2/modeling.py	14.14%	765 Missing ⚠️
...addlenlp/transformers/deepseek_v2/configuration.py	13.04%	40 Missing ⚠️
...ddlenlp/transformers/deepseek_v2/tokenizer_fast.py	29.41%	12 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@ ## develop #9250 +/- ## =========================================== - Coverage 52.84% 52.60% -0.24%  =========================================== Files 660 661 +1 Lines 107929 107493 -436 =========================================== - Hits 57030 56547 -483  - Misses 50899 50946 +47 

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.