media: cec-ioc-dqevent.rst: document the new 5V events

	capability set. When open() is called, the HPD pin can be read and

	if the HPD is high, then an initial event will be generated for that

	filehandle.

    * .. _`CEC-EVENT-PIN-5V-LOW`:

      - ``CEC_EVENT_PIN_5V_LOW``

      - 6

      - Generated if the 5V pin goes from a high voltage to a low voltage.

	Only applies to adapters that have the ``CEC_CAP_MONITOR_PIN``

	capability set. When open() is called, the 5V pin can be read and

	if the 5V is low, then an initial event will be generated for that

	filehandle.

    * .. _`CEC-EVENT-PIN-5V-HIGH`:

      - ``CEC_EVENT_PIN_5V_HIGH``

      - 7

      - Generated if the 5V pin goes from a low voltage to a high voltage.

	Only applies to adapters that have the ``CEC_CAP_MONITOR_PIN``

	capability set. When open() is called, the 5V pin can be read and

	if the 5V is high, then an initial event will be generated for that

	filehandle.

.. tabularcolumns:: |p{6.0cm}|p{0.6cm}|p{10.9cm}|