sound: tegra-alt: PEQ enhancement

sound: tegra-alt: PEQ enhancement

Add support for 8 channels in PEQ. Add support to
program gain and shift RAMs with integer coefficients
instead of byte arrays.

Fix OPE enable writes to incorrect regmap

Jira EMA-393

Change-Id: Ib509a9f95f4c152c2210f88975a1f7572d79ba08
Reviewed-on: http://git-master/r/1318570

(cherry picked from commit ce5e5653b226c6e329a4f520462301694b4b730e)

Change-Id: Ib509a9f95f4c152c2210f88975a1f7572d79ba08
Reviewed-on: http://git-master/r/1321756
Reviewed-by: Nitin Pai <npai@nvidia.com>
Tested-by: Nitin Pai <npai@nvidia.com>
Tested-by: Hariharan Sivaraman <hariharans@nvidia.com>