[os-win][requirements] FFE requested for os-win

Hi,

I’d like to request a FFE for os-win. One important bug fix has missed the train (4.3.1) release, for which reason we’d need to have a subsequent one.

The bug in question prevents Nova from starting after host reboots when using the Hyper-V driver on recent Windows Server 2019 builds.

Thanks, Lucian Petrut