System/Security: wrong check of the Memprot feature in esp_restart()/panic_restart()

esp_restart()/panic_restart() never resets the Digital system (so far required only by the Memprot feature) as there's a typo in the corresponding #define:
it checks CONFIG_ESP_SYSTEM_CONFIG_MEMPROT_FEATURE instead of CONFIG_ESP_SYSTEM_MEMPROT_FEATURE.
Issue fixed.

IDF-4094

components/esp_system/esp_system.c

@@ -1,16 +1,8 @@
-// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include "esp_system.h"
 #include "esp_private/system_internal.h"
@@ -93,7 +85,7 @@ void IRAM_ATTR esp_restart(void)
     vTaskSuspendAll();
 
     bool digital_reset_needed = false;
-#if CONFIG_ESP_SYSTEM_CONFIG_MEMPROT_FEATURE
+#if CONFIG_ESP_SYSTEM_MEMPROT_FEATURE
     if (esp_memprot_is_intr_ena_any() || esp_memprot_is_locked_any()) {
         digital_reset_needed = true;
     }