[media] doc-rst: Fix some Sphinx warnings

From the data sheet:

- Register 24'h20004  PCI Interrupt Status

 - bit [18]  IR_SMP_INT Set when 32 input samples have been collected over

 - gpio[16] pin into GP_SAMPLE register.

TM6000 cards list

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.. code-block:: none

 * @value: The value (must be != 0)

 *

 * to use rational values you can use the following method:

 *

 *   intlog2(value) = intlog2(value * 2^x) - x * 2^24

 *

 * Some usecase examples:

 *

 *	intlog2(8) will give 3 << 24 = 3 * 2^24

 *

 *	intlog2(9) will give 3 << 24 + ... = 3.16... * 2^24

 *

 *	intlog2(1.5) = intlog2(3) - 2^24 = 0.584... * 2^24

 *

 *

 * @value: The value (must be != 0)

 *

 * to use rational values you can use the following method:

 *

 *   intlog10(value) = intlog10(value * 10^x) - x * 2^24

 *

 * An usecase example:

 *

 *	intlog10(1000) will give 3 << 24 = 3 * 2^24

 *

 *   due to the implementation intlog10(1000) might be not exactly 3 * 2^24

 *

 * look at intlog2 for similar examples

 *			view. The media_entity_pipeline_start() function

 *			validates all links by calling this operation. Optional.

 *

 * .. note:: Those these callbacks are called with struct media_device.@graph_mutex

 * .. note::

 *

 *    Those these callbacks are called with struct media_device.@graph_mutex

 *    mutex held.

 */

struct media_entity_operations {