ASoC: core: remove setting platform_max in kcontrol macros

ASoC: core: remove setting platform_max in kcontrol macros

platform_max should not be set by the driver, its intended for machine drivers
or DT to override the max value for platform specific reasons.

So remove setting this from Kcontrol macros.

Setting this to max in these macros would limit the range when min
value is less then zero.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220816172129.6661-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>