usb: common: use of_property_read_bool()

Use more compact of_property_read_bool() calls for the boolean properties
instead  of of_find_property() calls  in of_usb_host_tpl_support() and
of_usb_update_otg_caps().
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/common/common.c

@@ -190,10 +190,7 @@ EXPORT_SYMBOL_GPL(of_usb_get_dr_mode_by_phy);
  */
 bool of_usb_host_tpl_support(struct device_node *np)
 {
-	if (of_find_property(np, "tpl-support", NULL))
-		return true;
-
-	return false;
+	return of_property_read_bool(np, "tpl-support");
 }
 EXPORT_SYMBOL_GPL(of_usb_host_tpl_support);
 
@@ -240,11 +237,11 @@ int of_usb_update_otg_caps(struct device_node *np,
 		otg_caps->otg_rev = 0;
 	}
 
-	if (of_find_property(np, "hnp-disable", NULL))
+	if (of_property_read_bool(np, "hnp-disable"))
 		otg_caps->hnp_support = false;
-	if (of_find_property(np, "srp-disable", NULL))
+	if (of_property_read_bool(np, "srp-disable"))
 		otg_caps->srp_support = false;
-	if (of_find_property(np, "adp-disable", NULL) ||
+	if (of_property_read_bool(np, "adp-disable") ||
 				(otg_caps->otg_rev < 0x0200))
 		otg_caps->adp_support = false;