GW/FW: Test/implement logic for data streaming

[Tomserv-512]

RX:

• 12 Bit SISO RX
• 16 Bit SISO RX
• 12 Bit MIMO RX
• 16 Bit MIMO RX

TX:

• 12 Bit SISO TX
• 16 Bit SISO TX
• 12 Bit MIMO TX
• 16 Bit MIMO TX

[Tomserv-512]

RX seems to work fine with all configurations using LimeSuite.
16bit MIMO has some issues when running from LimeSuiteNG.
LimeSuiteNG clock configuration also seems to miss something, as streams don't work if configured via LimeSuiteNG.
Also, occasionally the streams get corrupted, but resolve after a few reconfigurations, no clear pattern visible.

Investigating.