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 <[email protected]> will be
disabled soon. <[email protected]> will be my new address for handling
emails, patches and pull requests from upstream and communities.

Cc: Chester Lin <[email protected]>
Cc: NXP S32 Linux Team <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Olof Johansson <[email protected]>
Cc: Andreas Färber <[email protected]>
Cc: Matthias Brugger <[email protected]>
Signed-off-by: Chester Lin <[email protected]>
Reviewed-by: Matthias Brugger <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>