MAINTAINERS: Update my email address.

Update my email address in the MAINTAINERS file.

2023-11-18	Petter Tomner <tomner@bahnhof.se>

ChangeLog:
	* MAINTAINERS: Update my email address.

MAINTAINERS

@@ -682,7 +682,7 @@ Dinar Temirbulatov				<dtemirbulatov@gmail.com>
 Kresten Krab Thorup				<krab@gcc.gnu.org>
 Kai Tietz					<ktietz70@googlemail.com>
 Ilya Tocar					<tocarip@gmail.com>
-Petter Tomner					<tomner@kth.se>
+Petter Tomner					<tomner@bahnhof.se>
 Philipp Tomsich					<philipp.tomsich@vrull.eu>
 Daniel Towner					<dant@picochip.com>
 Konrad Trifunovic				<konrad.trifunovic@inria.fr>
@@ -769,7 +769,7 @@ Trevor Saunders					<tbsaunde+gcc@tbsaunde.org>
 Bill Schmidt					<bill.schmidt@fastmail.com>
 Nathan Sidwell					<nathan@acm.org>
 Edward Smith-Rowland				<esmithrowland@gmail.com>
-Petter Tomner					<tomner@kth.se>
+Petter Tomner					<tomner@bahnhof.se>
 Martin Uecker					<uecker@gcc.gnu.org>
 Jonathan Wakely					<jwakely@redhat.com>
 Chung-Ju Wu					<jasonwucj@gmail.com>