I've hit an issue building the nanocoap pkg for nrf52dk:

1. when using the softdevice, nrf52dk's cpu_conf.h includes files from a package
2. debug.h includes thread.h which includes cpu_conf.h
3. nanocoap uses debug.h
4. nanocoap comes before nordic_softdevice_ble lexicographically
5. our dependency system doesn't honor the dependencies in the build order