ASoC: SOF: imx8m: add SAI1 info

Add SAI1 instance to imx8m_dai array.

Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210916073725.359561-1-daniel.baluta@oss.nxp.com


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