ASoC: codecs: wm8993: use 'time_left' variable with wait_for_completion_timeout()

There is a confusing pattern in the kernel to use a variable named 'timeout' to
store the result of wait_for_completion_timeout() causing patterns like:

	timeout = wait_for_completion_timeout(...)
	if (!timeout) return -ETIMEDOUT;

with all kinds of permutations. Use 'time_left' as a variable to make the code
self explaining.

Fix to the proper variable type 'unsigned long' while here.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20240430115438.29134-3-wsa+renesas@sang-engineering.comReviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm8993.c

@@ -470,7 +470,7 @@ static int _wm8993_set_fll(struct snd_soc_component *component, int fll_id, int
 	struct i2c_client *i2c = to_i2c_client(component->dev);
 	u16 reg1, reg4, reg5;
 	struct _fll_div fll_div;
-	unsigned int timeout;
+	unsigned long time_left;
 	int ret;
 
 	/* Any change? */
@@ -543,19 +543,19 @@ static int _wm8993_set_fll(struct snd_soc_component *component, int fll_id, int
 
 	/* If we've got an interrupt wired up make sure we get it */
 	if (i2c->irq)
-		timeout = msecs_to_jiffies(20);
+		time_left = msecs_to_jiffies(20);
 	else if (Fref < 1000000)
-		timeout = msecs_to_jiffies(3);
+		time_left = msecs_to_jiffies(3);
 	else
-		timeout = msecs_to_jiffies(1);
+		time_left = msecs_to_jiffies(1);
 
 	try_wait_for_completion(&wm8993->fll_lock);
 
 	/* Enable the FLL */
 	snd_soc_component_write(component, WM8993_FLL_CONTROL_1, reg1 | WM8993_FLL_ENA);
 
-	timeout = wait_for_completion_timeout(&wm8993->fll_lock, timeout);
-	if (i2c->irq && !timeout)
+	time_left = wait_for_completion_timeout(&wm8993->fll_lock, time_left);
+	if (i2c->irq && !time_left)
 		dev_warn(component->dev, "Timed out waiting for FLL\n");
 
 	dev_dbg(component->dev, "FLL enabled at %dHz->%dHz\n", Fref, Fout);