Bug#966557: Blacklist nvidia-modeset and nvidia-drm

[Joel Johnson]

Package: bumblebee
Version: 3.2.1-22
Severity: important

With more recent nvidia drivers and Debian packages of 
nvidia-kernel-support, the nvidia-modeset and nvidia-drm modules are 
attempted to be loaded. This causes the driver to always be loaded. 
Locally I've added those two modules to the 
/etc/modprobe.d/bumblebee.conf to blacklist them in addition to the 
currently listed modules.