options for ext2fs. Now that we use nmount() directly from the mount
binary to access ext2fs filesystems, add the list of acceptable mount
options to ext2_ops, so that vfs_filteropts() will accept
options like "noatime" for ext2fs.
PR: 105483
Noticed by: Dr. Markus Waldeck <waldeck gmx de>
MFC after: 1 month