Activate some clang-tidy checks (#1884)

esphome/components/ethernet/ethernet_component.cpp

@@ -9,6 +9,11 @@
 #include <eth_phy/phy_tlk110.h>
 #include <lwip/dns.h>
 
+/// Macro for IDF version comparision
+#ifndef ESP_IDF_VERSION_VAL
+#define ESP_IDF_VERSION_VAL(major, minor, patch) (((major) << 16) | ((minor) << 8) | (patch))
+#endif
+
 // Defined in WiFiGeneric.cpp, sets global initialized flag, starts network event task queue and calls
 // tcpip_adapter_init()
 extern void tcpipInit();