Remote device should probably return remote:driver= and remote= to work with make

[cjcliffe]

When querying the device remotely (RTLSDR at least, I may have missed something in the module?), the only way I know it's an rtlsdr is by checking known parameters and the 'rtl' index key. It would be handy to automatically return the remote:driver and remote option as well; right now I just get driver=remote and if you pass it directly to make() it won't work without setting those two as well.

[guruofquality]

Ahh, good point. To be consistent, SoapyRemote's discovery function should be preserving those keys.

[guruofquality]

Should work now

[cjcliffe]

Excellent, tested and working here on Raspberry Pi + RTLSDR & OSX