ASoC: bcm: cygnus_ssp: remove useless initialization

Cppcheck warning:

sound/soc/bcm/cygnus-ssp.c:1364:6: style: Redundant initialization for
'err'. The initialized value is overwritten before it is
read. [redundantInitialization]
 err = devm_snd_soc_register_component(dev, &cygnus_ssp_component,
     ^
sound/soc/bcm/cygnus-ssp.c:1313:10: note: err is initialized
 int err = -EINVAL;
         ^
sound/soc/bcm/cygnus-ssp.c:1364:6: note: err is overwritten
 err = devm_snd_soc_register_component(dev, &cygnus_ssp_component,
     ^
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210326215927.936377-5-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/bcm/cygnus-ssp.c

@@ -1310,7 +1310,7 @@ static int cygnus_ssp_probe(struct platform_device *pdev)
 	struct device_node *child_node;
 	struct resource *res;
 	struct cygnus_audio *cygaud;
-	int err = -EINVAL;
+	int err;
 	int node_count;
 	int active_port_count;