[llvm] [hurd] Fix accessing f_type field of statvfs (PR #71851)

[Samuel Thibault via llvm-commits]

sthibaul wrote:

(yes, glibc 2.39 is not released yet, but we won't be going back on this, and better have llvm cope with the change before it happens)

https://github.com/llvm/llvm-project/pull/71851