staging: dgap: Fix trailing whitespace in dgap_sysfs.h

This patch fixed trailing whitespace found by checkpatch.pl
in staging/dgap/dgap_sysfs.h

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Lidza Louina <Lidza.Louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgap/dgap_sysfs.h

@@ -32,7 +32,7 @@ struct un_t;
 struct pci_driver;
 struct class_device;
 
-extern void dgap_create_ports_sysfiles(struct board_t *bd); 
+extern void dgap_create_ports_sysfiles(struct board_t *bd);
 extern void dgap_remove_ports_sysfiles(struct board_t *bd);
 
 extern void dgap_create_driver_sysfiles(struct pci_driver *);