Fix bug #1365658 - Eliminate absolute pathname to libjsig.so

Changes the makefiles used to link sqlci, tdm_arkcmp, etc. so that
libjsig.so is referenced generically rather than by absolute
pathname.  This will allow us (at run time) to use libjsig.so
from whereever it has been installed ... much like the way
that we get to libjvm.

All dev regressions were run to ensure that the fix has no
side-effects.

Also, verified (using objdump) that there is no longer any
reference to the absolute pathname for libjsig.so  in the
built objects for sqlci, tdm_arkcmp, tdm_arkesp, tdm_udrserv,
mxssmp, or mxsscp.

Files changed:
sql/nskgmake/arkcmp/Makefile
sql/nskgmake/sqlci/Makefile

Change-Id: I40d1cf2e295871e663a55e198b1465bcb81b5655
Merge "Fix bug #1365658 - Eliminate absolute pathname to libjsig.so"