include: drivers: dai: Align DAI direction with SOF direction

Currently, DAI_DIR_TX and DAI_DIR_RX have different values from
SOF_IPC_STREAM_PLAYBACK and SOF_IPC_STREAM_CAPTURE. Since SOF
performs no conversion from one encoding to another this may lead
DAI operations performed on the wrong directions.

Since it's much easier to just change the values for DAI_DIR_TX
and DAI_DIR_RX rather than try to perform a conversion from
one format to another on SOF side, this commit changes DAI_DIR_TX
to 0 (equal to SOF_IPC_STREAM_PLAYBACK) and DAI_DIR_RX to 1
(equal to SOF_IPC_STREAM_CAPTURE).

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>