New device Yotece 1200

[bilke]

Added Realtek device 0bda:b812.

It is a WLAN-adapter from yotece. See

• https://www.amazon.de/gp/product/B07572GGNP/ref=oh_aui_detailpage_o00_s02?ie=UTF8&psc=1
• https://wikidevi.com/wiki/YOTECE_AC1200