Add migration from jsch to mina-sshd to 3.2 plan

See this discussion about problems with jsch on the Eclipse cross
projects list [1] and the bug [2] for the implementation in JGit.

[1] https://www.eclipse.org/lists/cross-project-issues-dev/msg16172.html
[2] https://bugs.eclipse.org/bugs/show_bug.cgi?id=520927

Change-Id: I840ac9f876611108ffb7a87b43ebe1591a195cee
1 file changed