add RTW8852CU chipset support

[skyer9]

#17

[morrownr]

@skyer9

The owner of this repo passed away in May. He is missed. I worked with him on some projects.

A seller recently sent me an adapter based on the rtl8852cu chip and they sent the latest copy of the code. I am bringing up a repo this week. It is a private repo for testing. I can give you access if you are interested in testing. Let me know.

@morrownr

[skyer9]

@morrownr

thank you for suggestion.
but i think i cannot make time for this project.
if you give me a chance to copy source code, i will preciate it.