Implement remote lna toggle cli cmd

variants/heltec_v2/target.cpp

@@ -50,4 +50,4 @@ void radio_set_tx_power(int8_t dbm) {
 mesh::LocalIdentity radio_new_identity() {
   RadioNoiseListener rng(radio);
   return mesh::LocalIdentity(&rng);  // create new random identity
-}
+}

variants/heltec_v2/target.h

@@ -27,3 +27,5 @@ uint32_t radio_get_rng_seed();
 void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
 void radio_set_tx_power(int8_t dbm);
 mesh::LocalIdentity radio_new_identity();
+
+bool radio_get_rx_boosted_gain_mode();