ggml : fix typo in ggml.c (#7603)

Author: zhouwg

ggml.c

@@ -11012,7 +11012,7 @@ static void ggml_compute_forward_concat_f32(
 
 static void ggml_compute_forward_concat(
     const struct ggml_compute_params * params,
-    struct ggml_tensor* dst) {
+    struct ggml_tensor * dst) {
 
     const struct ggml_tensor * src0 = dst->src[0];