Update modesp32.c

Signed-off-by: Vincent1-python <pywei201209@163.com>

Author: Vincent1-python

ports/esp32/modesp32.c

@@ -284,7 +284,7 @@ static const mp_rom_map_elem_t esp32_module_globals_table[] = {
     #if SOC_ULP_SUPPORTED
     { MP_ROM_QSTR(MP_QSTR_wake_on_ulp), MP_ROM_PTR(&esp32_wake_on_ulp_obj) },
     #endif
-    #if SOC_GPIO_SUPPORT_HOLD_IO_IN_DSLP && !SOC_GPIO_SUPPORT_HOLD_SINGLE_IO_IN_DSLP
+    #if SOC_GPIO_SUPPORT_HOLD_IO_IN_DSLP && !SOC_GPIO_SUPPORT_HOLD_SINGLE_IO_IN_DSLP  //P4 does not support
     { MP_ROM_QSTR(MP_QSTR_gpio_deep_sleep_hold), MP_ROM_PTR(&esp32_gpio_deep_sleep_hold_obj) },
     #endif
     #if CONFIG_IDF_TARGET_ESP32