ath10k: fix config_enabled check for hwmon

Because of wrong macro check in commit 96bba983 ("ath10k: fix build error
when hwmon is off"), hwmon never be enabled. Fix that.
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/thermal.c

@@ -215,7 +215,7 @@ int ath10k_thermal_register(struct ath10k *ar)
 
 	/* Avoid linking error on devm_hwmon_device_register_with_groups, I
 	 * guess linux/hwmon.h is missing proper stubs. */
-	if (!config_enabled(HWMON))
+	if (!config_enabled(CONFIG_HWMON))
 		return 0;
 
 	hwmon_dev = devm_hwmon_device_register_with_groups(ar->dev,