add heltec v4.3

variants/heltec_v4/HeltecV4Board.h

@@ -4,12 +4,12 @@
 #include <helpers/RefCountedDigitalPin.h>
 #include <helpers/ESP32Board.h>
 #include <driver/rtc_io.h>
-
+#include "LoRaFEMControl.h"
 class HeltecV4Board : public ESP32Board {
 
 public:
   RefCountedDigitalPin periph_power;
-
+  LoRaFEMControl loRaFEMControl;
   HeltecV4Board() : periph_power(PIN_VEXT_EN,PIN_VEXT_EN_ACTIVE) { }
 
   void begin();