Update platformio.ini

variants/rak4631_epaper_onrxtx/platformio.ini

@@ -1,5 +1,6 @@
 ; The very slick RAK wireless RAK 4631 / 4630 board - Firmware for 5005 with the RAK 14000 ePaper
 [env:rak4631_eink_onrxtx]
+board_level = extra
 extends = nrf52840_base
 board = wiscore_rak4631
 build_flags = ${nrf52840_base.build_flags} -Ivariants/rak4631_epaper -D RAK_4631
@@ -12,4 +13,4 @@ lib_deps =
 debug_tool = jlink
 ; If not set we will default to uploading over serial (first it forces bootloader entry by talking 1200bps to cdcacm)
 ;upload_protocol = jlink
-upload_port = /dev/ttyACM3
+upload_port = /dev/ttyACM3