Fix config symbol name in ifdef to fix build error:

ERROR: "hid_compat_gyration" [drivers/hid/hid-dummy.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>