ASoC: tlv320aic31xx: Add support for pll_r coefficient

When the clock used by the codec is BCLK, the operation parameters need
to be calculated from input sample rate and format. Low frequency rates
required different r multipliers, in order to achieve a higher PLL
output frequency.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Link: https://lore.kernel.org/r/20211119153248.419802-3-ariel.dalessandro@collabora.com


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