ASoC: fsl_sai: Disable bit clock with transmitter

commit 269f399d

 upstream.

Otherwise bit clock remains running writing invalid data to the DAC.

Signed-off-by: Matus Gajdos <matuszpd@gmail.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230712124934.32232-1-matuszpd@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>