drivers/usb/core: devio.c: Removed an uneeded space before tab

Ran checkpatch.pl on file and removed a warning about an unwanted space before
a tab.
Signed-off-by: NChase Metzger <chasemetzger15@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>