ASoC: fsl_micfil: Add legacy_dai_naming flag

Need to add legacy_dai_naming flag otherwise there
will be issue when registerring component, that cause
the probe failure.

Fixes: 1e63fcc7

 ("ASoC: fsl: Migrate to new style legacy DAI naming flag")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1656899417-4775-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>