ASoC: ops: Enforce platform maximum on initial value

Lower the volume if it is violating the platform maximum at its initial
value (i.e. at the time of the 'snd_soc_limit_volume' call).

Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
[Cherry picked from the Asahi kernel with fixups -- broonie]
Signed-off-by: Mark Brown <broonie@kernel.orG>