phy: qcom-ufs: use of_property_read_bool

Use of_property_read_bool to check for the existence of a property.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e1,e2,x;
@@
-	if (of_get_property(e1,e2,NULL))
-		x = true;
-	else
-		x = false;
+	x = of_property_read_bool(e1,e2);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

drivers/phy/phy-qcom-ufs.c

@@ -283,10 +283,8 @@ static int __ufs_qcom_phy_init_vreg(struct phy *phy,
 			err = 0;
 		}
 		snprintf(prop_name, MAX_PROP_NAME, "%s-always-on", name);
-		if (of_get_property(dev->of_node, prop_name, NULL))
-			vreg->is_always_on = true;
-		else
-			vreg->is_always_on = false;
+		vreg->is_always_on = of_property_read_bool(dev->of_node,
+							   prop_name);
 	}
 
 	if (!strcmp(name, "vdda-pll")) {