MAINTAINERS: update Shawn's email to use kernel.org one

Update my mailbox to use kernel.org one for handling kernel community
maintenance traffic.

Signed-off-by: Shawn Guo <[email protected]>
Signed-off-by: Kevin Hilman <[email protected]>
diff --git a/MAINTAINERS b/MAINTAINERS
index b805a1f..41f7d35 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1035,7 +1035,7 @@
 F:	arch/arm/mach-footbridge/
 
 ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
-M:	Shawn Guo <[email protected]>
+M:	Shawn Guo <[email protected]>
 M:	Sascha Hauer <[email protected]>
 L:	[email protected] (moderated for non-subscribers)
 S:	Maintained
@@ -1048,7 +1048,7 @@
 F:	include/soc/imx/
 
 ARM/FREESCALE VYBRID ARM ARCHITECTURE
-M:	Shawn Guo <[email protected]>
+M:	Shawn Guo <[email protected]>
 M:	Sascha Hauer <[email protected]>
 R:	Stefan Agner <[email protected]>
 L:	[email protected] (moderated for non-subscribers)