jdk10/jdk10 is broken on 32-bit linux

[David Holmes]

With the latest changes in jdk10/jdk10 we are seeing failures of all 
jtreg agentvm mode tests on 32-bit linux binaries due to socket 
connection failures. And also some OSX failures.

This seems to be have been caused by:

8165437: Evaluate the use of gettimeofday in Networking code

http://hg.openjdk.java.net/jdk10/jdk10/jdk/rev/7cdde79d6a46

due to a truncation issue through using long instead of jlong.

I've notified net-dev and will file a P1 bug to either have this fixed 
or backed out.

David
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