ASoC: fsi: fixup fsi_pointer() calculation method

current fsi_pointer() calculation was not correct for FSI driver.
This patch fix it up.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
1 file changed