distrooverrides.bbclass: map DISTRO_FEATURES to overrides
distrooverrides.bbclass: map DISTRO_FEATURES to overrides

This is required for conditional .bbappends. The goal is to have
similar functionality in OE-core, probably without the renaming
support.

Signed-off-by: Patrick Ohly <0fc9d825c622b2a5ac5160289c29f03654b10648@intel.com>

YinThong/intel-iot-refkit,YinThong/intel-iot-refkit,klihub/intel-iot-refkit,jairglez/intel-iot-refkit,ipuustin/intel-iot-refkit,jairglez/intel-iot-refkit,ipuustin/intel-iot-refkit,jairglez/intel-iot-refkit,YinThong/intel-iot-refkit,klihub/intel-iot-refkit,intel/intel-iot-refkit,mythi/intel-iot-refkit,mythi/intel-iot-refkit,jairglez/intel-iot-refkit,ipuustin/intel-iot-refkit,mythi/intel-iot-refkit,klihub/intel-iot-refkit,intel/intel-iot-refkit,jairglez/intel-iot-refkit,ipuustin/intel-iot-refkit,intel/intel-iot-refkit,intel/intel-iot-refkit,ipuustin/intel-iot-refkit,klihub/intel-iot-refkit,mythi/intel-iot-refkit,klihub/intel-iot-refkit,mythi/intel-iot-refkit,ipuustin/intel-iot-refkit,YinThong/intel-iot-refkit,jairglez/intel-iot-refkit,klihub/intel-iot-refkit,YinThong/intel-iot-refkit,intel/intel-iot-refkit,klihub/intel-iot-refkit,intel/intel-iot-refkit,intel/intel-iot-refkit,ipuustin/intel-iot-refkit,YinThong/intel-iot-refkit,jairglez/intel-iot-refkit,mythi/intel-iot-refkit,YinThong/intel-iot-refkit,mythi/intel-iot-refkit