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

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

The copy_mc_to_kernel() helper is memory copy implementation that handles
source exceptions. It can be used in memory copy scenarios that tolerate
hardware memory errors(e.g: pmem_read/dax_copy_to_iter).

Currnently, only x86 and ppc suuport this helper, after arm64 support
machine check safe framework, we introduce copy_mc_to_kernel()
implementation.
Signed-off-by: NTong Tiangen <tongtiangen@huawei.com>