ASoC: da7210: Remove extra registers from defaults list

This patch removes following registers from reg map defaults,

- Registers which are currently not used by driver
- Non existing registers
- Volatile registers

Signed-off-by: Ashish Chavan <ashish.chavan@kpitcummins.com>
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>