[BugFix] Fix flash_attn_backend

[lizhenyun01]

Motivation

修复flash_attn_backend调用gqa_rope_write_cache算子时的传参问题

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Modifications

Usage or Command

Accuracy Tests

Checklist

• Add at least a tag in the PR title.
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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #5387   +/-   ##
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  Coverage           ?   59.24%           
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  Files              ?      325           
  Lines              ?    40220           
  Branches           ?     6089           
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  Hits               ?    23830           
  Misses             ?    14553           
  Partials           ?     1837           

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