memory-hotplug: mm/Kconfig: move auto selects from MEMORY_HOTPLUG to MEMORY_HOTREMOVE...

memory-hotplug: mm/Kconfig: move auto selects from MEMORY_HOTPLUG to MEMORY_HOTREMOVE as needed

Since we have 2 config options called MEMORY_HOTPLUG and MEMORY_HOTREMOVE
used for memory hot-add and hot-remove separately, and codes in function
register_page_bootmem_info_node() are only used for collecting infomation
for hot-remove(commit 04753278), so move it to MEMORY_HOTREMOVE.

Besides page_isolation.c selected by MEMORY_ISOLATION under MEMORY_HOTPLUG
is also such case, move it too.

Signed-off-by: Lin Feng <linfeng@cn.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>