ASoC: imx-spdif: Fix crash on suspend

BugLink: https://bugs.launchpad.net/bugs/1878246

commit 99548591 upstream.

When registering a ASoC card the driver data of the parent device is set to
point to the card. This driver data is used in the
snd_soc_suspend()/resume() callbacks.

The imx-spdif driver overwrites the driver data with custom data which
causes snd_soc_suspend() to crash.  Since the custom driver is not used
anywhere simply deleting the line which sets the custom driver data fixes
the issue.

Fixes: 43ac9469 ("ASoC: imx-spdif: add snd_soc_pm_ops for spdif machine driver")
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ian May <ian.may@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

sound/soc/fsl/imx-spdif.c

@@ -72,8 +72,6 @@ static int imx_spdif_audio_probe(struct platform_device *pdev)
 		goto end;
 	}
 
-	platform_set_drvdata(pdev, data);
-
 end:
 	of_node_put(spdif_np);