sysinit test failure to link psim

[Amar Takhar]

Found by Buildbot here!

  https://buildbot.rtems.org/#/builders/19/builds/47

FYI if anyone does want to make a quick check to see if the error is 
reproducible Buildbot creates a snapshot with bootstrap already run on every 
build for example for this build:

  https://buildbot.rtems.org/#/builders/4/builds/814

It's always the 'snapshot-test' and if all the current builds work we get a 
'snapshot-stable' which is stable for all builds that have been done.


Amar.