Added libatomic to LIB_EXTERNAL_LIBS to ensure libatomic is installed on the target.
Added libatomic to LIB_EXTERNAL_LIBS to ensure libatomic is installed
on the target.

trisk/mistify-os,mistifyio/mistify-os,trisk/mistify-os,mistifyio/mistify-os,trisk/mistify-os,mistifyio/mistify-os