[cmake]:
* Update to use the above patch.
* Remove a52. Need to use system version.
* Remove stub file. Append pcsx2 to 3rparty library to ease futur support.
Important Note: codeblock will probably need some update. (add 3rdparty/soundtouch_linux_include in include path)
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3200 96395faa-99c1-11dd-bbfe-3dabce05a288
