MAINTAINERS: change the S32G2 maintainer's email address.

MAINTAINERS: change the S32G2 maintainer's email address.

I am leaving SUSE so the current email address <clin@suse.com> will be
disabled soon. <chester62515@gmail.com> will be my new address for handling
emails, patches and pull requests from upstream and communities.

Cc: Chester Lin <chester62515@gmail.com>
Cc: NXP S32 Linux Team <s32@nxp.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Chester Lin <clin@suse.com>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Link: https://lore.kernel.org/r/20231115234508.11510-1-clin@suse.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>