ASoC: SOF: ipc4-topology: Drop the 'index' from 'Pin index' of format print

ASoC: SOF: ipc4-topology: Drop the 'index' from 'Pin index' of format print

Printing the word `index` does not give extra information over printing:
`Pin #%d` which tells that the format line is for a specific pin.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://patch.msgid.link/20241008110936.22534-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>