conf: layer: set LAYERSERIES_COMPAT for this layer
conf: layer: set LAYERSERIES_COMPAT for this layer

Setting this variable is used since sumo to track layer compatibility
and active layer maintanance.
Setting this will prevent from utriggering a warning and is required for
Yocto Project Compatible version 2 standard.

Signed-off-by: Enrico Jorns <a2e5f936c390f36494e46e71bcfbe365bb1e8c49@pengutronix.de>

rauc/meta-rauc,rauc/meta-rauc,rauc/meta-rauc,rauc/meta-rauc