Update Documentation/usb/proc_usb_info.txt:
- remove some trailing whitespace
- add a blank line before each T: line to match current kernel
  and to make the text more readable.
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>