Transceivert52M: Add option for baseband frequency offset

Allow command line setting of the DSP frequency in UHD. All channels
will be tuned with the same offset. Dual-channel tuning with the B210,
which uses a single LO, will override the command line offset value
and set the DSP frequency automatically.

Signed-off-by: Thomas Tsou <tom@tsou.cc>
3 files changed