EDD: fix raw_data file and edd_has_edd30(), misc cleanups

* Update copyright date
* s/driverfs/sysfs in comments
* bump version
* bug fix: raw_data file was always printing device 0's info.
* bug fix: edd_has_edd30 was always returning device 0's info.
* always print the report info at the end of raw_data
* edd_dev_is_type() should return boolean
* edd_match_scsidev() should return boolean
* remove duplicate calls to pci_find_slot, use edd_get_pci_dev().
* attribute tests should return boolean
* add edd_release()
* work if !CONFIG_SCSI=[ym]
* use new find_bus() and bus_for_each_dev() to match SCSI devices