Rename ADD quantization parameters to ADDSUB

Prepare for re-use in quantized SUB microkernels

PiperOrigin-RevId: 395352416
diff --git a/src/xnnpack/operator.h b/src/xnnpack/operator.h
index 60738e2..fe75dac 100644
--- a/src/xnnpack/operator.h
+++ b/src/xnnpack/operator.h
@@ -293,16 +293,16 @@
     };
     // Quantized Add parameters are sensitive to order of inputs, so we initialize an extra copy with the reversed order.
     struct {
-      union xnn_qs8_add_minmax_params qs8_add;
-      union xnn_qs8_add_minmax_params qs8_radd;
+      union xnn_qs8_addsub_minmax_params qs8_addsub;
+      union xnn_qs8_addsub_minmax_params qs8_raddsub;
     };
     struct {
       union xnn_qs8_mul_minmax_params qs8_mul;
       union xnn_qs8_mul_minmax_params qs8_rmul;
     };
     struct {
-      union xnn_qu8_add_minmax_params qu8_add;
-      union xnn_qu8_add_minmax_params qu8_radd;
+      union xnn_qu8_addsub_minmax_params qu8_addsub;
+      union xnn_qu8_addsub_minmax_params qu8_raddsub;
     };
     struct {
       union xnn_qu8_mul_minmax_params qu8_mul;