MAINTAINERS: update MAINTAINERS email entry

Update MAINTAINERS email entry for arch-pxa and arch-mmp.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>

MAINTAINERS

@@ -5344,7 +5344,7 @@ F:	drivers/media/video/pvrusb2/
 PXA2xx/PXA3xx SUPPORT
 M:	Eric Miao <eric.y.miao@gmail.com>
 M:	Russell King <linux@arm.linux.org.uk>
-M:	Haojian Zhuang <haojian.zhuang@marvell.com>
+M:	Haojian Zhuang <haojian.zhuang@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 T:	git git://github.com/hzhuang1/linux.git
 T:	git git://git.linaro.org/people/ycmiao/pxa-linux.git
@@ -5359,7 +5359,7 @@ F:	sound/soc/pxa
 
 MMP SUPPORT
 M:	Eric Miao <eric.y.miao@gmail.com>
-M:	Haojian Zhuang <haojian.zhuang@marvell.com>
+M:	Haojian Zhuang <haojian.zhuang@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 T:	git git://github.com/hzhuang1/linux.git
 T:	git git://git.linaro.org/people/ycmiao/pxa-linux.git