[cpu]llama avx model inference supports

[bukejiyu]

PR types

PR changes

Description

paddle inference_mode 集成xft cpu kernel
机器8463B
输入/输出 128/15 bs=1
静态图llama 测速 next_tokens: 100+ms
48线程 动态图llama 测速 next_tokens: 70+ms

[paddle-bot]

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 282 lines in your changes missing coverage. Please review.

Project coverage is 55.63%. Comparing base (65e721e) to head (b791375).
Report is 11 commits behind head on develop.

Files	Patch %	Lines
...dlenlp/experimental/transformers/llama/modeling.py	0.00%	133 Missing ⚠️
...enlp/experimental/transformers/generation_utils.py	0.00%	101 Missing ⚠️
...erimental/transformers/fused_transformer_layers.py	0.00%	48 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8634      +/-   ##
===========================================
- Coverage    55.80%   55.63%   -0.18%     
===========================================
  Files          620      620              
  Lines        96642    96940     +298     
===========================================
  Hits         53928    53928              
- Misses       42714    43012     +298     

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[DesmonDay]

LGTM