ASoC: tas2781: Correct the wrong description and register address on tas2781

ASoC: tas2781: Correct the wrong description and register address on tas2781

Correct the wrong description for TAS257X. Combined TAS5825 with TAS2563,
as they use the same register address and number.
Correct the register address and number for TAS5827.

Fixes: 7095d688de38 ("ASoC: tas2781: Add tas2118, tas2x20, tas5825 support")
Signed-off-by: Baojun Xu <baojun.xu@ti.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>