DeepseekV4: Add fused hyper-connection ops (#25585)

* dsv4 hc-ops

* add missing files;

* add cparams

* update rpc version

* address review comments

* address review comments

src/models/models.h

@@ -1187,9 +1187,10 @@ struct llama_model_deepseek4 : public llama_model_base {
                 float kq_scale,
                 int il) const;
 
-        ggml_tensor * build_hc_weighted_sum(
+        ggml_tensor * build_hc_pre(
                 ggml_tensor * x,
-                ggml_tensor * weights) const;
+                ggml_tensor * weights,
+                int il) const;
 
         ggml_tensor * build_hc_sinkhorn(
                 ggml_tensor * comb,