ASoC: ops: Add control to register value helper

ASoC: ops: Add control to register value helper

Add a helper function to convert from control values to register values
that can replace a lot of the duplicated code in the various put
handlers.

This also fixes a small issue in snd_soc_put_volsw where the value is
converted to a control value before doing the invert, but the invert
is done against the register max which will result in incorrect values
for inverted controls with a non-zero minimum.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20250318171459.3203730-8-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>