bug#40158: mount point is not created if mount? is #f

[maxim . cournoyer]

Consider the following file system record:

(file-system
  (device "some-server:/mnt/scratch/yocto-sstate")"
  (mount-point "/mnt/scratch/yocto-sstate")
  (create-mount-point? #t)
  (type "nfs")
  (mount? #f)
  (options "soft")
  (flags '(no-exec)))

Even though a user would think the mount point would be created, it is
not, I'm guessing because mount? is #f.

Maxim