Fix compile issues with 3.17 backports

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Fix compile issues with older drivers

* Add missing semicolon to 0x4004 definition (2.6.38)
* Remove duplicate device definition (2.6.30)
* Add missing closing brace (2.6.30)

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Change 3.17 branch dependency to CONFIG_HID_WACOM

Kernel 3.17 migrates the wacom.ko driver from the USB tree to the HID
tree and now uses the CONFIG_HID_WACOM flag.