MAINTAINERS: socfpga: update email for Dinh Nguyen

My opensource.altera.com email will be going away soon.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index acd7c3d..35c71bb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1773,7 +1773,7 @@
 F:	include/linux/soc/renesas/
 
 ARM/SOCFPGA ARCHITECTURE
-M:	Dinh Nguyen <dinguyen@opensource.altera.com>
+M:	Dinh Nguyen <dinguyen@kernel.org>
 S:	Maintained
 F:	arch/arm/mach-socfpga/
 F:	arch/arm/boot/dts/socfpga*
@@ -1783,7 +1783,7 @@
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git
 
 ARM/SOCFPGA CLOCK FRAMEWORK SUPPORT
-M:	Dinh Nguyen <dinguyen@opensource.altera.com>
+M:	Dinh Nguyen <dinguyen@kernel.org>
 S:	Maintained
 F:	drivers/clk/socfpga/