net/freerdp: Fix build with libressl 3.4.1
Apply patch from:
https://github.com/FreeRDP/FreeRDP/commit/bfbef39759b9641a4fab8b75b9243c48cb0789ac
While here, pet linters.
PR: 259740
Reported by: rozhuk.im@gmail.com
Approved by: vvd@unislabs.com (maintainer)