mcbts: Add multi-ARFCN radio support

Add new radio interface "radioInterfaceMulti" for multi-carrier
support.

Only USRP B200/B210 devices are supported because of sample
rate requirements (3.2 Msps).

Only 4 SPS operation Tx/RX is supported.

8-PSK is supported.

Other options may be added at a later time

Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
7 files changed