Fixed vulnerability in engine.

Author: Maurus Item

rtl/redmule_engine.sv

@@ -130,7 +130,7 @@ generate
     // In case input matrix is bigger than the array, we feedback the partial results to continue the computation
     always_comb begin : partial_product_feedback
       feedback[index] = y_bias_i[index];
-      if (accumulate_i)
+      if (accumulate_i[replica_index])
         feedback[index] = result[index];
       else
         feedback[index] = y_bias_i[index];