USB: Standardize inclusion protection and add where missing.

For the header files in include/linux/usb, add missing multiple
inclusion protection and standardize what's already there.  The
apparent standards:

  * macro name of __LINUX_USB_headerfile_H
  * inclusion protection placed after leading comment block
  * macro name added as a comment on the final #endif
  * any obvious trivial whitespace cleanup associated with the above

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/include/linux/usb/iowarrior.h b/include/linux/usb/iowarrior.h
index de6f380..4fd6513 100644
--- a/include/linux/usb/iowarrior.h
+++ b/include/linux/usb/iowarrior.h
@@ -1,5 +1,5 @@
-#ifndef _IOWARRIOR_H_
-#define _IOWARRIOR_H_
+#ifndef __LINUX_USB_IOWARRIOR_H
+#define __LINUX_USB_IOWARRIOR_H
 
 #define CODEMERCS_MAGIC_NUMBER	0xC0	/* like COde Mercenaries */
 
@@ -39,4 +39,4 @@
 */
 #define IOW_GETINFO _IOR(CODEMERCS_MAGIC_NUMBER, 3, struct iowarrior_info)
 
-#endif  /* _IOWARRIOR_H_ */
+#endif /* __LINUX_USB_IOWARRIOR_H */