feat: support text_encoder for flux2 on device npu

[wang-shuibin]

Description

support text_encoder for flux2 on device npu

Related Issues

Feat: support text_encoder for flux2 on device npu

Change Type

• Bug fix
• New feature
• Performance improvement
• Refactor
• Documentation
• Test
• Build or CI

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Reviewer Notes

[DongheJin]

Commit messages must conform to the specifications.