[chirp_devel] Fixed Frequency Radio

[Dan Smith]

> But if I uncomment either either of the commented code, then I get a
> "Radio did not validate a valid memory" error when running the suite
> of tests.

Well, right, because the tests expect all radios to be able to set 
channels within their supported bands.

For a radio with fixed channels, I would expect the valid_bands to be 
empty. That will probably make the tests avoid trying to set anything as 
they loop over an empty set of band edges. If not, you might need a 
tweak to the tests also. This would be the first fixed-channel radio in 
chirp that I know of, so not too surprising to end up with some changes 
to the tests I think.

--Dan