MAINTAINERS: update entries for ARM/SOCFPGA platform

Update email address, add W and T entries.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>

MAINTAINERS

@@ -1367,12 +1367,15 @@ F:	arch/arm/mach-shmobile/
 F:	drivers/sh/
 
 ARM/SOCFPGA ARCHITECTURE
-M:	Dinh Nguyen <dinguyen@altera.com>
+M:	Dinh Nguyen <dinguyen@opensource.altera.com>
 S:	Maintained
 F:	arch/arm/mach-socfpga/
+W:	http://www.rocketboards.org
+T:	git://git.rocketboards.org/linux-socfpga.git
+T:	git://git.rocketboards.org/linux-socfpga-next.git
 
 ARM/SOCFPGA CLOCK FRAMEWORK SUPPORT
-M:	Dinh Nguyen <dinguyen@altera.com>
+M:	Dinh Nguyen <dinguyen@opensource.altera.com>
 S:	Maintained
 F:	drivers/clk/socfpga/