MAINTAINERS: Add James Morse to the list of APEI reviewers

Add James to the list of reviewers of the firmware-assisted RAS glue.
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: James Morse <james.morse@arm.com>
Link: https://lkml.kernel.org/r/20190205083836.21641-1-bp@alien8.deSigned-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

MAINTAINERS

@@ -331,6 +331,7 @@ ACPI APEI
 M:	"Rafael J. Wysocki" <rjw@rjwysocki.net>
 M:	Len Brown <lenb@kernel.org>
 L:	linux-acpi@vger.kernel.org
+R:	James Morse <james.morse@arm.com>
 R:	Tony Luck <tony.luck@intel.com>
 R:	Borislav Petkov <bp@alien8.de>
 F:	drivers/acpi/apei/