usb: host: xhci: fix up Control Transfer TRB decoder

Format for each TRB in each control transfer stage differs. Let's make
sure we correctly pretty print these fields to avoid confusion.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>