Add compatible string for imx8mp, which has micfil module
Signed-off-by: NShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1652087663-1908-2-git-send-email-shengjiu.wang@nxp.comSigned-off-by: NMark Brown <broonie@kernel.org>