feat: Allow BatchPrefillPagedWrapper to call cudnn API (#1384)

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Author: Anerudhan

benchmarks/routines/attention.py

@@ -798,6 +798,7 @@ def testBatchPrefillWithPagedKVCacheWrapper(args):
         .int()
         .to(device)
     )
+
     # Because actual_seq_lens_kv is the same as actual_seq_lens_q, kv_indptr will become the same as qo_indptr
     kv_indptr = (
         torch.cat(