fix: build native IDF component as C++17

Signed-off-by: Zhibin (Ryan) Wen <wenzhibin@espressif.com>

Author: Sped0n

CMakeLists.txt

@@ -30,6 +30,8 @@ idf_component_register(
     PRIV_REQUIRES ${private_requires}
 )
 
+idf_build_set_property(CXX_COMPILE_OPTIONS "-std=gnu++17" APPEND)
+
 # Optionally link M5Unified only when it is already part of the build (e.g. a M5Unified-based
 # app or example). This puts M5GFX's <utility/I2C_Class.hpp> on adapter_i2c.cpp's include path,
 # so the real m5::I2C_Class adapter is compiled instead of the stub. Pure ESP-IDF builds without

src/m5_unit_component/adapter_spi.cpp

@@ -11,6 +11,7 @@
 #include "adapter_spi.hpp"
 #if defined(ESP_PLATFORM)
 #include <driver/gpio.h>
+#include <freertos/FreeRTOS.h>
 #endif
 #include <M5HAL.hpp>
 #include <M5Utility.hpp>