score: update email address in MAINTAINERS.

Signed-off-by: Chen Liqin <liqin.chen@sunplusct.com>

MAINTAINERS

@@ -4460,7 +4460,7 @@ SCORE ARCHITECTURE
 P:	Chen Liqin
 M:	liqin.chen@sunplusct.com
 P:	Lennox Wu
-M:	lennox.wu@sunplusct.com
+M:	lennox.wu@gmail.com
 W:	http://www.sunplusct.com
 S:	Supported