package/nvidia-modprobe: new package

package/nvidia-modprobe: new package

nvidia-modprobe package adds a utility and headers for probing the NVIDIA
hardware at runtime.

https://github.com/NVIDIA/nvidia-modprobe

Signed-off-by: Christian Stewart <christian@paral.in>
[Arnout:
 - use upstream Makefile instead of building directly;
 - don't install to staging;
 - remove dependency on host-pkgconf;
 - correct license to GPL-2.0;
 - remove dependency on threads and glibc;
 - add dependency on MMU.]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>