reply for ACPI: APEI: handle synchronous exceptions in task work

[Lv Ying]

Hi Shuai Xue:

I notice that  we are both handling the same problem, my patchset:
RFC: https://lkml.org/lkml/fancy/2022/12/5/364
RFC PATCH v1: https://lkml.org/lkml/2022/12/7/244
has CC to you 

Yingwen's proposal in 2022/12/06[1]:
Add Bit 8 in "Common Platform Error Record" -> "Section Descriptor" ->
Flags (which Now, Bit 8 through 31 – Reserved) 

[1] https://members.uefi.org/wg/uswg/mail/thread/9453

Yingwen's proposal makes distinguish synchronous error by CPER report more
easy, however, it's not supported yet.
Looking forward to your reply if there is any progress on the proposal and
your suggestions about my patchset.