ASoC: sunxi: sun4i-i2s: update kernel-doc

ASoC: sunxi: sun4i-i2s: update kernel-doc

Remove warnings

sound/soc/sunxi/sun4i-i2s.c:205: warning: Function parameter or member
'num_din_pins' not described in 'sun4i_i2s_quirks'

sound/soc/sunxi/sun4i-i2s.c:205: warning: Function parameter or member
'num_dout_pins' not described in 'sun4i_i2s_quirks'

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220616220802.136282-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>