Add heltec-v4.3 board (#9753)

* Add heltec-v4.3 board

* Modify LNA control display content

* Fix Heltec Tracker v2 FEM control

* Use trunk to fix formatting issues.

* Optimize the fem initialization control logic.

* Update src/mesh/RadioInterface.h change #ifdef to #if

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Change LORA_PA_EN to LORA_GC1109_PA_EN.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Remove the NodeDB.h include.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Change tx_gain to a const variable.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Fixed the issue where ARCH_PORTDUINO lacked the NUM_PA_POINTS macro.

* Remove the comment.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Move #pragma once to the first line.

* Remove the FEM LNA control menu.

* Add description for KCT8103L.

---------

Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/mesh/LoRaFEMInterface.h

@@ -0,0 +1,30 @@
+#pragma once
+#if HAS_LORA_FEM
+#include "configuration.h"
+#include <stdint.h>
+
+typedef enum { GC1109_PA, KCT8103L_PA, OTHER_FEM_TYPES } LoRaFEMType;
+
+class LoRaFEMInterface
+{
+  public:
+    LoRaFEMInterface() {}
+    virtual ~LoRaFEMInterface() {}
+    void init(void);
+    void setSleepModeEnable(void);
+    void setTxModeEnable(void);
+    void setRxModeEnable(void);
+    void setRxModeEnableWhenMCUSleep(void);
+    void setLNAEnable(bool enabled);
+    int8_t powerConversion(int8_t loraOutputPower);
+    bool isLnaCanControl(void) { return lna_can_control; }
+    void setLnaCanControl(bool can_control) { lna_can_control = can_control; }
+
+  private:
+    LoRaFEMType fem_type;
+    bool lna_enabled = false;
+    bool lna_can_control = false;
+};
+extern LoRaFEMInterface loraFEMInterface;
+
+#endif