[XPU] Support empty_cache on XPUs

[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

New features

PR changes

APIs

Description

Support empty_cache on XPUs

[codecov]

Codecov Report

Attention: Patch coverage is 26.08696% with 17 lines in your changes missing coverage. Please review.

Project coverage is 52.37%. Comparing base (13053a7) to head (d407728).
Report is 5 commits behind head on develop.

❗ Current head d407728 differs from pull request most recent head 633f536

Please upload reports for the commit 633f536 to get more accurate results.

Files with missing lines	Patch %	Lines
...p/trainer/unified_checkpoint/unified_checkpoint.py	10.00%	9 Missing ⚠️
paddlenlp/utils/memory_utils.py	37.50%	5 Missing ⚠️
paddlenlp/quantization/quantization_utils.py	0.00%	2 Missing ⚠️
paddlenlp/trl/embedding_trainer.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #9789      +/-   ##
===========================================
+ Coverage    52.06%   52.37%   +0.31%     
===========================================
  Files          734      731       -3     
  Lines       116591   115281    -1310     
===========================================
- Hits         60703    60379     -324     
+ Misses       55888    54902     -986     

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[DesmonDay]

LGTM

[wawltor]

LGTM