ASoC: codecs: wm0010: use DECLARE_COMPLETION_ONSTACK() macro

Follow recommendation in Documentation/scheduler/completion.rst and
use macro to declare local 'struct completion'
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20200813175442.59067-1-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm0010.c

@@ -346,7 +346,7 @@ static int wm0010_firmware_load(const char *name, struct snd_soc_component *comp
 	struct list_head xfer_list;
 	struct wm0010_boot_xfer *xfer;
 	int ret;
-	struct completion done;
+	DECLARE_COMPLETION_ONSTACK(done);
 	const struct firmware *fw;
 	const struct dfw_binrec *rec;
 	const struct dfw_inforec *inforec;
@@ -370,7 +370,6 @@ static int wm0010_firmware_load(const char *name, struct snd_soc_component *comp
 	wm0010->boot_failed = false;
 	if (WARN_ON(!list_empty(&xfer_list)))
 		return -EINVAL;
-	init_completion(&done);
 
 	/* First record should be INFO */
 	if (rec->command != DFW_CMD_INFO) {