example: add device esp32h2_devkit_c to example light

device_hal/device/esp32h2_devkit_c/device.c

@@ -0,0 +1,45 @@
+// Copyright 2021 Espressif Systems (Shanghai) CO 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
+
+#include <esp_log.h>
+
+#include <light_driver.h>
+#include <button_driver.h>
+
+#define LED_GPIO_PIN 8              /* GPIO_NUM_8 */
+#define LED_CHANNEL  0              /* RMT_CHANNEL_0 */
+
+
+static const char *TAG = "device";
+
+static esp_err_t device_light_init()
+{
+    light_driver_config_t config = {
+        .gpio = LED_GPIO_PIN,
+        .channel = LED_CHANNEL,
+    };
+    return light_driver_init(&config);
+}
+
+static esp_err_t device_button_init()
+{
+    return button_driver_init(NULL);
+}
+
+esp_err_t device_init()
+{
+    ESP_LOGI(TAG, "Initializing device");
+    device_light_init();
+    device_button_init();
+    return ESP_OK;
+}

device_hal/device/esp32h2_devkit_c/esp_matter_device.cmake

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+cmake_minimum_required(VERSION 3.5)
+if (NOT ("${IDF_TARGET}" STREQUAL "esp32h2"))
+    message(FATAL_ERROR "please set esp32h2 as the IDF_TARGET using 'idf.py -- preview set-target esp32h2'")
+endif()
+
+SET(device_hal_path $ENV{ESP_MATTER_DEVICE_PATH}/../../)
+SET(device_name esp32h2_devkit_c)
+SET(light_type ws2812)
+SET(button_type hollow)
+SET(used_driver light_driver button_driver)
+SET(extra_components_dirs_append "${device_hal_path}/light_driver"
+                                 "${device_hal_path}/button_driver"
+                                 "$ENV{IDF_PATH}/examples/common_components/led_strip")