- Remove ugly '#ifdef MODULE's
- Use the __exit attribute on sbpcd_exit()
- Don't rename sbpcd_init() to __sbpcd_init() in modules
- Make sbpcd_init() and sbpcd_exit() static
- Ensure sbpcd_init() is actually called when the driver is compiled in
to the kernel

Signed-off-by: Ross Kendall Axe <ross.axe@blueyonder.co.uk>