Add USE_SX1262 flag to multiple platformio.ini configurations

variants/rpi_picow/platformio.ini

@@ -20,6 +20,7 @@ build_flags = ${rp2040_base.build_flags}
   -D SX126X_CURRENT_LIMIT=130
   -D SX126X_RX_BOOSTED_GAIN=1
   -D LORA_TX_POWER=22
+  -D USE_SX1262
   -D RADIO_CLASS=CustomSX1262
   -D WRAPPER_CLASS=CustomSX1262Wrapper
 build_src_filter = ${rp2040_base.build_src_filter}