FIFO should be flushed before it is enabled for the first time.
This fixes the I/O errors reported by the ASoC core on a fresh boot
Signed-off-by: NVaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: NHebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>