Fix issue with bad rpath

Building qtwebkit causes a QA issue such that QtWebPluginProcess and
QtWebProcess contain bad RPATHs which point into the build location. This fix
adds a patch to not include the rpath.prf which causes this problem.

Signed-off-by: Trevor Woerner <trevor.woerner@linaro.org>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Simon Busch <morphis@gravedo.de>