arm64: get/put_user support machine check safe

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5GB28


CVE: NA

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Add {get, put}_user() to machine check safe.

If get/put fail due to hardware memory error, only the relevant processes
are affected, so killing the user process and isolate the user page with
hardware memory errors is a more reasonable choice than kernel panic.

Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>