mm: gmem: Introduce hmadvise

euleros inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I7WLVX



---------------------------------------------

Introduce hmadvise via ioctl in order to specific gmem behavior.

Co-developed-by: Bin Wang <wangbin224@huawei.com>
Signed-off-by: Ma Wupeng <mawupeng1@huawei.com>