[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS-Plus/Test/FreeRTOS-Cellular-Interface/Integration/cellular_config.h

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+/*
+ * FreeRTOS V202212.01
+ * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * https://www.FreeRTOS.org
+ * https://github.com/FreeRTOS
+ *
+ */
+
+/**
+ * @file cellular_config.h
+ * @brief cellular config options.
+ */
+
+#ifndef __CELLULAR_CONFIG_H__
+#define __CELLULAR_CONFIG_H__
+
+/* This is a project specific file and is used to override config values defined
+ * in cellular_config_defaults.h. */
+
+/**
+ * Cellular comm interface make use of COM port on computer to communicate with
+ * cellular module on windows simulator, for example "COM5".
+ * #define CELLULAR_COMM_INTERFACE_PORT    "...insert here..."
+ */
+
+/*
+ * Default APN for network registration.
+ * #define CELLULAR_APN                    "...insert here..."
+ */
+
+/*
+ * PDN context id for cellular network.
+ */
+#define CELLULAR_PDN_CONTEXT_ID         ( CELLULAR_PDN_CONTEXT_ID_MIN )
+
+/*
+ * PDN connect timeout for network registration.
+ */
+#define CELLULAR_PDN_CONNECT_TIMEOUT    ( 100000UL )
+
+/*
+ * Overwrite default config for different cellular modules.
+ */
+
+/*
+ * GetHostByName API is not used in the demo. IP address is used to store the hostname.
+ * The value should be longer than the length of democonfigMQTT_BROKER_ENDPOINT in demo_config.h.
+ */
+#define CELLULAR_IP_ADDRESS_MAX_SIZE    ( 64U )
+
+#endif /* __CELLULAR_CONFIG_H__ */