MAINTAINERS: update HEST maintainership entries

Mark HEST code as maintained and assign them to me.

While here, add a "L" entry to EDAC ML as RAS discussions
usually happen there.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message-ID: <6316f5b788cdc6b63e808606649dc5862271b22e.1778075257.git.mchehab+huawei@kernel.org>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

MAINTAINERS

diff --git a/MAINTAINERS b/MAINTAINERS
index b57f40f..de1eb18 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2237,14 +2237,17 @@
 F: docs/devel/testing/acpi-bits.rst
 
 ACPI/HEST/GHES
+M: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
+L: linux-edac@vger.kernel.org
 L: qemu-arm@nongnu.org
-S: Orphan
+S: Maintained
 F: hw/acpi/ghes.c
 F: include/hw/acpi/ghes.h
 F: docs/specs/acpi_hest_ghes.rst
 
 ACPI/HEST/GHES/ARM processor CPER
-R: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
+M: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
+L: linux-edac@vger.kernel.org
 S: Maintained
 F: hw/arm/ghes_cper.c
 F: hw/acpi/ghes_cper_stub.c