Fix the x2-sim regressions
Fix the x2-sim regressions

Instead of using the util/platform.pl script to find the target platform in
the launch-apsim Makefiles, use the variable CHPL_MAKE_TARGET_PLATFORM, which
gets set in an included Makefile.

This way this file can be built correctly even if $CHPL_HOME is unset.


git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@15177 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

hildeth/chapel,sungeunchoi/chapel,chizarlicious/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,hildeth/chapel,hildeth/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,chizarlicious/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,chizarlicious/chapel,chizarlicious/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,chizarlicious/chapel,sungeunchoi/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,chizarlicious/chapel,hildeth/chapel,CoryMcCartan/chapel,hildeth/chapel,chizarlicious/chapel,sungeunchoi/chapel,hildeth/chapel,hildeth/chapel,sungeunchoi/chapel