Updated nvidia packages fix security vulnerabilities

Updated nvidia304 and nvidia-current drivers fixes security issues: The NVIDIA Linux Discrete GPU drivers before R304.125, R331.x before R331.113, R340.x before R340.65, R343.x before R343.36, and R346.x before R346.22, Linux for Tegra L4T driver before R21.2, and Chrome OS driver before R40 allo...

[USN-2438-1] NVIDIA graphics drivers vulnerabilities

========================================================================== Ubuntu Security Notice USN-2438-1 December 10, 2014 nvidia-graphics-drivers-304, nvidia-graphics-drivers-304-updates, nvidia-graphics-drivers-331, nvidia-graphics-drivers-331-updates vulnerabilities...