ENGR00305648-1 ASoC: imx-sgtl5000: Support non-ssi cpu-dai

The current imx-sgtl5000 driver always attaches the cpu-dai to ssi while
in fact it could be attached to other cpu-dais like SAI. Thus this patch
use a general code to support another cpu-dai. And meanwhile update the
devicetree for i.MX6 Series.

Acked-by: Wang Shengjiu <b02247@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
(cherry picked from commit cb5dfaf44d2fdbce4329c2e4762e8450c8cd3b3c)
3 files changed