patch 8.2.0557: no IPv6 support for channels

Problem:    No IPv6 support for channels.
Solution:   Add IPv6 support. (Ozaki Kiichi, closes #5893)
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index 1d7a3ed..fa14c9e 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -469,7 +469,7 @@
 CHANNEL_OBJ	= $(OBJDIR)/channel.obj
 CHANNEL_DEFS	= -DFEAT_JOB_CHANNEL
 
-NETBEANS_LIB	= WSock32.lib
+NETBEANS_LIB	= WSock32.lib Ws2_32.lib
 !endif
 
 # Set which version of the CRT to use