!6 move ndisc.spec to ndisc6.spec

From: @orange-snn
Reviewed-by: @wangxp006
Signed-off-by: @wangxp006

ndisc6.spec

@@ -1,6 +1,6 @@
 Name:		ndisc6
 Version:	1.0.4
-Release:	2
+Release:	3
 Summary:	IPv6 diagnostic tools
 License:	GPLv2 or GPLv3
 URL:		http://www.remlab.net/ndisc6
@@ -45,6 +45,9 @@ It includes the follwing programs :
 %{_mandir}/man*
 
 %changelog
+* Tue Dec 15 2020 orange-snn <songnannan2@huawei.com> - 1.0.4-3
+- move ndisc.spec to ndisc6.spec
+
 * Fri Nov 6 2020 jialei <jialei17@huawei.com> - 1.0.4-2
 - add help for Requires