[llvm] [CMake][Support] Use /nologo when compiling BLAKE3 assembly sources on Windows (PR #106794)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

> Ok that's fine with me. I have disabled the option to keep them private.

Thank you, and thanks for your contribution!

https://github.com/llvm/llvm-project/pull/106794