ndppd: update MAINTAINER info

Also add myself to the MAINTAINERS file.

Signed-off-by: 谢致邦 (XIE Zhibang) <Yeking@Red54.com>

Author: Red54

MAINTAINERS

@@ -23,3 +23,4 @@ Saverio Proto <zioproto@gmail.com>
 Simon Wunderlich <sw@simonwunderlich.de>
 Steven Barth <steven@midlink.org>
 Vasilis "acinonyx" Tsiligiannis <acinonyx@openwrt.gr>
+谢致邦 (XIE Zhibang) <Yeking@Red54.com>

ndppd/Makefile

@@ -29,7 +29,7 @@ define Package/ndppd
   CATEGORY:=Network
   TITLE:=NDP Proxy Daemon
   URL:=http://www.priv.nu/projects/ndppd/
-  MAINTAINER:=Gabriel Kerneis <gabriel@kerneis.info>
+  MAINTAINER:=谢致邦 (XIE Zhibang) <Yeking@Red54.com>
   DEPENDS:=@IPV6 +libstdcpp
 endef