ASoC: soc_sdw_utils: skip aux device if it is not present

Bard Liao <yung-chuan.liao@linux.intel.com> says:

ASoC: soc_sdw_utils: skip aux device if it is not present

Similarly to codec endpoints that may not be used [1], aux devices (like
HID) also may not be used. Hence skip aux devices which are not present.

Also update the comment above is_sdca_endpoint_present().

[1] https://lore.kernel.org/all/20250414063239.85200-12-yung-chuan.liao@linux.intel.com/

Link: https://patch.msgid.link/20260508094750.1246796-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --cc sound/soc/sdw_utils/soc_sdw_utils.c
Simple merge