Enable virtio-9pfs on windows hosts

Goal

To ensure virtio-9pfs feature is brought to windows hosts.
Filing this bug to track progress of patches.

Technical details

Saw patches from Bin Meng in qemu-devel dated 2022-04-08 17:10[1].

Additional information

attn: @schoenebeck

Ref

1. 20220408 [RFC PATCH 0/4] 9pfs: Add 9pfs support for Windows host
   https://lore.kernel.org/qemu-devel/20220408171013.912436-1-bmeng.cn@gmail.com/T/#m880b0c169998a59ff301e5fdedb014be6a8acf33
2. 20221223 [PULL 0/5] 9p queue 2022-12-23
   https://lore.kernel.org/qemu-devel/cover.1671793476.git.qemu_oss@crudebyte.com/
3. 20221219 [PATCH v3 00/17] hw/9pfs: Add 9pfs support for Windows
   https://lore.kernel.org/qemu-devel/20221219102022.2167736-1-bin.meng@windriver.com/