[HOT-FIX] Add `kv_sharing_target_layer_name` argument to cutlass_mla backend (#19374)

Signed-off-by: Pavani Majety <pmajety@nvidia.com>

vllm/v1/attention/backends/mla/cutlass_mla.py

@@ -40,12 +40,13 @@ class CutlassMLAImpl(MLACommonImpl[MLACommonMetadata]):
             blocksparse_params: Optional[dict[str, Any]],
             logits_soft_cap: Optional[float],
             attn_type: str,
+            kv_sharing_target_layer_name: Optional[str],
             # MLA Specific Arguments
             **mla_args) -> None:
         super().__init__(num_heads, head_size, scale, num_kv_heads,
                          alibi_slopes, sliding_window, kv_cache_dtype,
                          blocksparse_params, logits_soft_cap, attn_type,
-                         **mla_args)
+                         kv_sharing_target_layer_name, **mla_args)
 
         unsupported_features = [
             alibi_slopes, sliding_window, blocksparse_params, logits_soft_cap