CA-142451: Fail to report all LUNs advertised on targets sharing the sam...

...e IQN

If a multicontroller array advertises its targets using the same IQN
but different IPs and the LUNs in those targets are distinct,
we are able to show only LUNs coming from the first IP address.

The fix reinstates a line that was removed in commit 391bdf055dff
in our old sm.hg repository.

Signed-off-by: Germano Percossi <germano.percossi@citrix.com>
Could we move this functionality to a separate method, so that we could cover it with unit tests? What I am thinking about:
 - commit 1 to apply a refactor - a simple extract method
 - commit 2 to add Unit Tests for the existing functionality
 - commit 3 to cover the new functionality.

What do you think?