Exposing interleave argument for fused_apply_rotary_pos_emb_thd

[huvunvidia]

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[huvunvidia]

/ok to test 8c48bd9

[yaox12]

LGTM

[yaox12]

/ok to test 8c48bd9

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[svcnvidia-nemo-ci]

🔄 Merge queue validation started!

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