ASoC: cs35l45: Rename DACPCM1 Source control

Rename control to "DACPCM Source" for backward compatibility
with previous implementation.

Signed-off-by: Vlad Karpovich <vkarpovi@opensource.cirrus.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230828170525.335671-5-vkarpovi@opensource.cirrus.com


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