fs_parser: remove fs_parameter_description name field

Documentation/filesystems/mount_api.txt

arch/powerpc/platforms/cell/spufs/inode.c

arch/s390/hypfs/inode.c

arch/x86/kernel/cpu/resctrl/rdtgroup.c

drivers/block/rbd.c

drivers/usb/gadget/function/f_fs.c

fs/afs/super.c

fs/ceph/super.c

fs/filesystems.c

fs/fs_parser.c

fs/fuse/inode.c

fs/gfs2/ops_fstype.c

fs/hugetlbfs/inode.c

fs/jffs2/super.c

fs/nfs/fs_context.c

fs/proc/root.c

fs/ramfs/inode.c

fs/xfs/xfs_super.c

include/linux/fs_parser.h

kernel/bpf/inode.c