MAINTAINERS: add cper to APEI files
The CPER records are defined as part of UEFI specs, but its
primary way to report it is via APEI/GHES. As such, let's
place it under the same umbrella to make easier for patch
review.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
authored by Mauro Carvalho Chehab and committed by Ard Biesheuvel 85829b80 6e62d1c6