[8u] Code Review Request - RT-34385: Support Prism HW acceleration on Linux with open-source driver

[Chien Yang]

Hi Felipe and Kevin,

    Please review this simple one line fix to support X.Org open source 
drivers for ATI/AMD and Nvidia:

http://cr.openjdk.java.net/~ckyang/RT-34385/webrev.00/

Thanks,
- Chien