* Just set LED_BUILTIN universally to -1, as we don't use it.
* LUD_BUILTIN workarounds
* Squash the LED_BUILTINs that sneaked in
* Don't kill valid pin derfine
* Add initial variant and platformio configuration for RAK WISMESHTAP V2
* Add initial variant and platformio configuration for rak wismesh tap v2
* Remove unnecessary Meshtastic build flags from rak_wismesh_tap_v2 configuration
* Enable LGFX button support in rak_wismesh_tap_v2 configuration
* Revert "Enable LGFX button support in rak_wismesh_tap_v2 configuration"
This reverts commit 2bd2c1a03b1b8a224c440049b7aff8a15bb54dbf.
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Co-authored-by: Daniel.Cao <daniel.cao@rakwireless.com>