Findx264 will now detect the correct version

On some machines (e.g. 015) the lib was found, but it had the wrong version. This caused the linker to fail: CMakeFiles/StreamProvider.dir/StreamProviderI.cpp.o: In Funktion Stream::StreamProviderI::onConnectImageProcessor()': /common/homes/students/grimm/armarx/VisionX/source/VisionX/components/image_processor/StreamProvider/StreamProviderI.cpp:149: Nicht definierter Verweis auf x264_encoder_open_148'

Now these machines will deactivate the target correctly.