stmhal: Update pin print to print new constants

This updates the print function for machine.Pin to
print out the new constants from the Hardware API defintion
rather than the legacy definitions.

stmhal/pin.c

@@ -199,15 +199,15 @@ STATIC void pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t
         if (mode == GPIO_MODE_INPUT) {
             mode_qst = MP_QSTR_IN;
         } else if (mode == GPIO_MODE_OUTPUT_PP) {
-            mode_qst = MP_QSTR_OUT_PP;
+            mode_qst = MP_QSTR_OUT;
         } else if (mode == GPIO_MODE_OUTPUT_OD) {
-            mode_qst = MP_QSTR_OUT_OD;
+            mode_qst = MP_QSTR_OPEN_DRAIN;
         } else {
             af = true;
             if (mode == GPIO_MODE_AF_PP) {
-                mode_qst = MP_QSTR_AF_PP;
+                mode_qst = MP_QSTR_ALT;
             } else {
-                mode_qst = MP_QSTR_AF_OD;
+                mode_qst = MP_QSTR_ALT_OPEN_DRAIN;
             }
         }
         mp_print_str(print, qstr_str(mode_qst));