Update codegen POM for Mars build

The codegen build was taking the profile from 

https://hudson.eclipse.org/papyrus-rt/job/Papyrus-RT-Master-All/lastSuccessfulBuild/artifact/repository/

but that repository now contains Neon builds, which causes Mars builds
to fail.

Change-Id: I815a8557837f8f07d7bab60606e8cada07162678
Signed-off-by: Ernesto Posse <eposse@gmail.com>
5 files changed