Adds a missing byteswap that would affect interrupt transfers
with EHCI on big-endian platforms, like Rick's MIPS-4km uClinux.
Needed for external hubs, and then likely for mice, keyboards,
and so on.

 From:          Rick Sewill <rsewill@cableone.net>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>