MLK-21106: ASoC: imx-ak4458: Fix channel not supported in tdm & daisy chain

The channel num (9 - 15) should not be supported in tdm & daisy chain
mode for there is two dataline, this channel number can't be
symmetrically distributed on two dataline (the first one is fixed to
be 8 channel)

Fixes commit 8d298743 ("MLK-17817-2: ASoC: imx-ak4458: enable 16
channels in TDM mode")

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>