ASoC: nau8824: fix the issue of the widget with prefix name

[ Upstream commit 844a4a362dbec166b44d6b9b3dd45b08cb273703 ]

The driver has two issues when machine add prefix name for codec.
(1)The stream name of DAI can't find the AIF widgets.
(2)The drivr can enable/disalbe the MICBIAS and SAR widgets.

The patch will fix these issues caused by prefixed name added.

Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>