emulators/wine-proton: Fix build with devel/libsysinfo present

Port b75f3b5a79927f27605bee328c36d9d7d8b425ec from emulators/wine:

This back ports the patch I pushed upstream and that wine-devel has
inherited from there a few months ago. It will go away with the next
major release.

PR: 260792
Requested by: iwtcex@gmail.com (maintainer)
Submitted by: Patrick Mackinlay <freebsd.68fba@nospam.spacesurfer.com>