[hotfix] layout converting issue

[YuliangLiu0306]

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[github-actions]

The code coverage for the changed files is 91%.

Click me to view the complete report

Name                                             Stmts   Miss  Cover
--------------------------------------------------------------------
colossalai/tensor/d_tensor/layout_converter.py     200     18    91%
--------------------------------------------------------------------
TOTAL                                              200     18    91%

[github-actions]

The code coverage for the changed files is 91%.

Click me to view the complete report

Name                                             Stmts   Miss  Cover
--------------------------------------------------------------------
colossalai/tensor/d_tensor/layout_converter.py     200     18    91%
--------------------------------------------------------------------
TOTAL                                              200     18    91%