modutils: add notices telling that this package is obsolete.

modutils: add notices telling that this package is obsolete.

	modified:   manual/modutils/release/man1/kernelversion.1
	modified:   manual/modutils/release/man2/create_module.2
	modified:   manual/modutils/release/man2/delete_module.2
	modified:   manual/modutils/release/man2/get_kernel_syms.2
	modified:   manual/modutils/release/man2/init_module.2
	modified:   manual/modutils/release/man2/query_module.2
	modified:   manual/modutils/release/man5/modules.conf.5
	modified:   manual/modutils/release/man8/depmod.8
	modified:   manual/modutils/release/man8/genksyms.8
	modified:   manual/modutils/release/man8/insmod.8
	modified:   manual/modutils/release/man8/kallsyms.8
	modified:   manual/modutils/release/man8/kdstat.8
	modified:   manual/modutils/release/man8/ksyms.8
	modified:   manual/modutils/release/man8/lsmod.8
	modified:   manual/modutils/release/man8/modinfo.8
	modified:   manual/modutils/release/man8/modprobe.8
	modified:   manual/modutils/release/man8/rmmod.8