hg: jdk/jdk12: 8215292: Back out changes for node- and link- local ipv6 multicast address

[pavel.rappo at oracle.com]

Changeset: 8c85d34413d2
Author:    prappo
Date:      2018-12-14 19:49 +0000
URL:       http://hg.openjdk.java.net/jdk/jdk12/rev/8c85d34413d2

8215292: Back out changes for node- and link- local ipv6 multicast address
Reviewed-by: chegar, alanb

! src/java.base/unix/native/libnet/net_util_md.c
- test/jdk/java/net/MulticastSocket/PromiscuousIPv6.java
- test/jdk/java/nio/channels/DatagramChannel/PromiscuousIPv6.java