Staging: b3dfg: Prepare b3dfg for submission upstream.

- Basically, update driver to run with 2.6.28
    - Conversion from struct class_device to struct device.
    - Conversion from .nopfn to .fault in vm_operations_struct.
    - Update use of pci_resource_flags to check for IORESOURCE_SIZEALIGN.
    - Update use of pci_dma_mapping_error.
- Minor code cleanup and integration with kernel build system.

Signed-off-by: Justin Bronder <jsbronder@brontes3d.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>