ASoC: max98390: update dsm param bin max size

 MAX98390_DSM_PARAM_MAX_SIZE is changed to support extended
 register update.

Signed-off-by: Steve Lee <steves.lee@maximintegrated.com>
Link: https://lore.kernel.org/r/20200724085644.9837-1-steves.lee@maximintegrated.com


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