xiao_c6: apply sx1262 init refactoring

variants/xiao_c6/platformio.ini

@@ -18,7 +18,6 @@ build_flags =
   -D PIN_BOARD_SDA=16
   -D PIN_BOARD_SCL=17
   -D SX126X_RXEN=23
-;  -D SX126X_TXEN=14
   -D SX126X_DIO2_AS_RF_SWITCH=true
   -D SX126X_DIO3_TCXO_VOLTAGE=1.8
   -D SX126X_CURRENT_LIMIT=140
@@ -55,8 +54,8 @@ build_flags = ${Xiao_C6.build_flags}
   -D BLE_PIN_CODE=123456
   -D BLE_DEBUG_LOGGING=1
   -D OFFLINE_QUEUE_SIZE=256
-;  -D ENABLE_PRIVATE_KEY_IMPORT=1
-;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+  -D ENABLE_PRIVATE_KEY_IMPORT=1
+  -D ENABLE_PRIVATE_KEY_EXPORT=1
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1
 build_src_filter = ${Xiao_C6.build_src_filter}

variants/xiao_c6/target.cpp

@@ -24,41 +24,12 @@ bool radio_init() {
   fallback_clock.begin();
   rtc_clock.begin(Wire);
 
-#ifdef SX126X_DIO3_TCXO_VOLTAGE
-  float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
-#else
-  float tcxo = 1.6f;
-#endif
-
 #if defined(P_LORA_SCLK)
   spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
+  return radio.std_init(&spi);
+#else
+  return radio.std_init();
 #endif
-  int status = radio.begin(LORA_FREQ, LORA_BW, LORA_SF, LORA_CR, RADIOLIB_SX126X_SYNC_WORD_PRIVATE, LORA_TX_POWER, 8, tcxo);
-  if (status != RADIOLIB_ERR_NONE) {
-    Serial.print("ERROR: radio init failed: ");
-    Serial.println(status);
-    return false;  // fail
-  }
-
-  radio.setCRC(1);
-
-#if defined(SX126X_RXEN) && defined(SX126X_TXEN)
-  radio.setRfSwitchPins(SX126X_RXEN, SX126X_TXEN);
-#endif
-
-#ifdef SX126X_CURRENT_LIMIT
-  radio.setCurrentLimit(SX126X_CURRENT_LIMIT);
-#endif
-
-#ifdef SX126X_DIO2_AS_RF_SWITCH
-  radio.setDio2AsRfSwitch(SX126X_DIO2_AS_RF_SWITCH);
-#endif
-
-#ifdef SX126X_RX_BOOSTED_GAIN
-  radio.setRxBoostedGainMode(SX126X_RX_BOOSTED_GAIN);
-#endif
-
-  return true;  // success
 }
 
 uint32_t radio_get_rng_seed() {