power: abx500_chargalg: Remove deprecated create_singlethread_workqueue

alloc_ordered_workqueue() with WQ_MEM_RECLAIM set replaces
deprecated create_singlethread_workqueue(). This is the identity
conversion.

The workqueue "chargalg_wq" is used for running the charging algorithm.
It has multiple workitems viz &di->chargalg_periodic_work,
&di->chargalg_wd_work, &di->chargalg_work per abx500_chargalg, which
require ordering. It has been identity converted.

Also, WQ_MEM_RECLAIM has been set to ensure forward progress under
memory pressure.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

drivers/power/supply/abx500_chargalg.c

@@ -2091,8 +2091,8 @@ static int abx500_chargalg_probe(struct platform_device *pdev)
 		abx500_chargalg_maintenance_timer_expired;
 
 	/* Create a work queue for the chargalg */
-	di->chargalg_wq =
-		create_singlethread_workqueue("abx500_chargalg_wq");
+	di->chargalg_wq = alloc_ordered_workqueue("abx500_chargalg_wq",
+						   WQ_MEM_RECLAIM);
 	if (di->chargalg_wq == NULL) {
 		dev_err(di->dev, "failed to create work queue\n");
 		return -ENOMEM;