ASoC: rockchip: Add support for rv1126 pdm

This patch adds support for rv1126 pdm controller which
redesign cic filiter for better performance.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Link: https://lore.kernel.org/r/1630675410-3354-1-git-send-email-sugar.zhang@rock-chips.com


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