platform/x86: intel_pmt_crashlog: Constify static attribute_group struct

mainline inclusion
from mainline-v5.14-rc1
commit d24023e3
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I596K9


CVE: NA

Intel-SIG: commit d24023e3 platform/x86: intel_pmt_crashlog: Constify
static attribute_group struct.
Backport for intel PMT (Platform Monitoring Technology) support

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

The only use of pmt_crashlog_group is to assign its address to the
attr_grp field in the intel_pmt_namespace struct, which is a pointer to
const attribute_group. Make it const to allow the compiler to put it in
read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20210605203807.60547-3-rikard.falkeborn@gmail.com


Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: yingbao jia <yingbao.jia@intel.com>
Signed-off-by: Jun Tian <jun.j.tian@intel.com>