Little flaw in bochsrc

The bochsrc in the last release includes the following line:

vgaromimage: vgabios-elpin-2.40

However, the file case is else, and if it wasn't for this line it would work in
linux as well. I'd suggest to change the line (in the next release) to:

vgaromimage: VGABIOS-elpin-2.40

So it works under linux as well.