* There isn't much API that would only be used accross modules within
stabilizer/dsp but should not be pub beyond stabilizer/dsp.
* Therefore it's easier to let the definition determine visibility and
the mod.rs/lib.rs determine location in the namesapce.
* Blanket use pub items in mod and lib.
I haven't done any runtime tests using Pounder, but it seems
like the API change is just a consequence of making the QSPI
address width runtime-configurable.
Robert Jördens
David Nadlinger
Ryan Summers