Add the TAS2564 as a supported amplifier.  This amplifier is register,
bitmap and feature compatible to the TAS2562.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: https://lore.kernel.org/r/20200918150130.21015-2-dmurphy@ti.comSigned-off-by: Mark Brown <broonie@kernel.org>