linux-phytec-ti

ARM: dts: imx6ul-14x14-evk: Pass "fsl, sai-mclk-direction-output"

Pass "fsl,sai-mclk-direction-output" to the sai2 node, so that the
SAI2_MCLK can be an output.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>