Update dynamic.c

Add Braswell (extended model 4, model 12) N3150 as Nehalem

driver/others/dynamic.c

@@ -261,8 +261,8 @@ static gotoblas_t *get_coretype(void){
 	    return &gotoblas_NEHALEM; //OS doesn't support AVX. Use old kernels.
 	  }
 	}
-	//Intel Avoton
-	if (model == 13) { 
+	//Intel Braswell / Avoton
+	if (model == 12 || model == 13) { 
 	  openblas_warning(FALLBACK_VERBOSE, NEHALEM_FALLBACK); 
 	  return &gotoblas_NEHALEM;
 	}