trace, RAS: Add eMCA trace event interface

Add trace interface to elaborate all H/W error related information.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --cc drivers/acpi/Kconfig
Simple merge

diff --cc drivers/acpi/acpi_extlog.c
Simple merge

diff --cc drivers/firmware/efi/cper.c
Simple merge

diff --cc drivers/ras/ras.c
Simple merge

diff --cc include/linux/cper.h
Simple merge

diff --cc include/ras/ras_event.h
Simple merge