MAINTAINERS: Update Nobuhiro Iwamatsu's email address

The company's email address has been changed, so update my email
address in MAINTAINERS and .mailmap files.

Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

Author: iwamatsu-t

.mailmap

@@ -589,6 +589,7 @@ Nikolay Aleksandrov <[email protected]> <[email protected]>
 Nikolay Aleksandrov <[email protected]> <[email protected]>
 Nikolay Aleksandrov <[email protected]> <[email protected]>
 Nikolay Aleksandrov <[email protected]> <[email protected]>
+Nobuhiro Iwamatsu <[email protected]> <[email protected]>
 Odelu Kukatla <[email protected]> <[email protected]>
 Oleksandr Natalenko <[email protected]> <[email protected]>
 Oleksij Rempel <[email protected]> <[email protected]>

MAINTAINERS

@@ -3526,7 +3526,7 @@ F:	Documentation/devicetree/bindings/arm/ti/nspire.yaml
 F:	arch/arm/boot/dts/nspire/
 
 ARM/TOSHIBA VISCONTI ARCHITECTURE
-M:	Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
+M:	Nobuhiro Iwamatsu <nobuhiro.iwamatsu[email protected]>
 L:	[email protected] (moderated for non-subscribers)
 S:	Supported
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/iwamatsu/linux-visconti.git