esp32c6: clean up existing soc files and header file inclusion in IDF to be compatible with the new chip

components/soc/esp32s3/rtc_io_periph.c

@@ -1,18 +1,10 @@
-// Copyright 2018-2020 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: 2018-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
-#include "soc/rtc_io_periph.h"
+#include "soc/rtc_periph.h"
 
 const int rtc_io_num_map[SOC_GPIO_PIN_COUNT] = {
     RTCIO_GPIO0_CHANNEL,    //GPIO0