MAINTAINERS: Update James Hogan's email address

Update my imgtec.com email address to my kernel.org one in MAINTAINERS
as MIPS will soon no longer be part of Imagination Technologies, and add
a mapping in .mailcap so get_maintainer.pl reports the right address.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Michael Tokarev <mjt@tls.msk.ru>
Cc: Laurent Vivier <laurent@vivier.eu>
Cc: qemu-devel@nongnu.org
Cc: qemu-trivial@nongnu.org
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
[Yongbok Kim:
  Updated message subject]
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>

.mailmap

@@ -8,6 +8,7 @@ Aurelien Jarno <aurelien@aurel32.net> aurel32 <aurel32@c046a42c-6fe2-441c-8c8c-7
 Blue Swirl <blauwirbel@gmail.com> blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>
 Edgar E. Iglesias <edgar.iglesias@gmail.com> edgar_igl <edgar_igl@c046a42c-6fe2-441c-8c8c-71466251a162>
 Fabrice Bellard <fabrice@bellard.org> bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
+James Hogan <jhogan@kernel.org> <james.hogan@imgtec.com>
 Jocelyn Mayer <l_indien@magic.fr> j_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162>
 Paul Brook <paul@codesourcery.com> pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
 Thiemo Seufer <ths@networkno.de> ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>

MAINTAINERS

@@ -285,7 +285,7 @@ S: Maintained
 F: target/arm/kvm.c
 
 MIPS
-M: James Hogan <james.hogan@imgtec.com>
+M: James Hogan <jhogan@kernel.org>
 S: Maintained
 F: target/mips/kvm.c