types: on error fallback to filepath.Clean()
types: on error fallback to filepath.Clean()

Now expandEnvPath always fallbacks to filepath.Clean() when
filepath.EvalSymlinks() fails.

commit b4477c7a8b80ae0c2fe7aa63f20ef8b91d18cfa5 introduced the
regression.

This is useful in a user namespace when the permissions for the
storage path are not yet tweaked to allow access for all users.

Reported by: https://github.com/containers/buildah/pull/3450

Signed-off-by: Giuseppe Scrivano <20002b7b24c75512093a71a58285826d5c504fca@redhat.com>

containers/storage,containers/storage,containers/storage