Introduce ROCK 5B - ARM Desktop level SBC

[stuartiannaylor]

ROCK 5B Debug Party Invitation

Dear Radxa community and developers After 4 months development and 4 major revisions of the hardware, I am happy to announce another milestone for ROCK 5B, we can finally ship the developer edition ROCK 5B. The ROCK 5B now is hardware vision v1.3 with some notable changes since the announcement: HDMI IN connector now moves to the front panel, easier for enclosure design MIPI DSI and CSI moves to the side edge of the PCB Heatsink mounting holes changes to north bridge common used dimension […