[LTP] Fix make install in ipc directory

[Jeff B. <jb...@ra...>]

This patch fixes the make install target in the ipc directory's Makefiles.

But it leads me to a different questions.  When things are moved around,
there's alot of paths to update.  Ongoing, should the Makefile's contain
something like:

top_srcdir := ../../../../..

And then instead the patch could say:

+       @set -e; for i in $(TARGETS); do ln -f $$i $(top_srcdir)/testcases/bin/$$i ; done

And all of the other relative links could reference top_srcdir.

If yes, when i'mbored one day, I'll submit a massive patch for this ;)

Tks,
Jeff Bailey

-- 
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 - Voltaire