staging: octeon-usb: cvmx-usbcx-defs.h: avoid long lines in comments

Format all comments (except license text) to fit to 80 column terminals.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>