ASoC: doc: cs35l56: Add CS35L63 to the list of supported devices

Add CS35L63 to the list of parts supported by the cs35l56 driver and
mention the CS35L63 where the text refers to the supported part numbers.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250618145547.152814-1-rf@opensource.cirrus.com


Signed-off-by: Mark Brown <broonie@kernel.org>