ASoC: codecs: wm8994: 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.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20240430115438.29134-4-wsa+renesas@sang-engineering.comReviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm8994.c

@@ -2210,7 +2210,7 @@ static int _wm8994_set_fll(struct snd_soc_component *component, int id, int src,
 	int reg_offset, ret;
 	struct fll_div fll;
 	u16 reg, clk1, aif_reg, aif_src;
-	unsigned long timeout;
+	unsigned long time_left;
 	bool was_enabled;
 	struct clk *mclk;
 
@@ -2403,9 +2403,9 @@ static int _wm8994_set_fll(struct snd_soc_component *component, int id, int src,
 				    WM8994_FLL1_FRAC, reg);
 
 		if (wm8994->fll_locked_irq) {
-			timeout = wait_for_completion_timeout(&wm8994->fll_locked[id],
-							      msecs_to_jiffies(10));
-			if (timeout == 0)
+			time_left = wait_for_completion_timeout(&wm8994->fll_locked[id],
+								msecs_to_jiffies(10));
+			if (time_left == 0)
 				dev_warn(component->dev,
 					 "Timed out waiting for FLL lock\n");
 		} else {