RedPitaya device support for SoapySDR (default version)

 The Soapy Red Pitaya project provides a SoapySDR hardware support module.
 Using this, any program using SoapySDR to interface to software
 defined radio hardware can make use of the Red Pitaya HF channels to
 transmit and receive.
 .
 This is an empty dependency package that pulls in the Red Pitaya module
 for the default version of libsoapysdr.