dm: Drop the unused arg in uclass_find_device_by_seq()

Now that there is only one sequence number (rather than both requested and
assigned ones) we can simplify this function. Also update its caller to
simplify the logic.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/bus.c b/test/dm/bus.c
index 77555e5..60ddb1d 100644
--- a/test/dm/bus.c
+++ b/test/dm/bus.c
@@ -156,17 +156,17 @@
 	ut_asserteq_str("c-test@5", dev->name);
 
 	/* Device with sequence number 0 should be accessible */
-	ut_asserteq(-ENODEV, device_find_child_by_seq(bus, -1, true, &dev));
-	ut_assertok(device_find_child_by_seq(bus, 0, true, &dev));
+	ut_asserteq(-ENODEV, device_find_child_by_seq(bus, -1, &dev));
+	ut_assertok(device_find_child_by_seq(bus, 0, &dev));
 	ut_assert(!(dev->flags & DM_FLAG_ACTIVATED));
-	ut_asserteq(0, device_find_child_by_seq(bus, 0, false, &dev));
+	ut_asserteq(0, device_find_child_by_seq(bus, 0, &dev));
 	ut_assertok(device_get_child_by_seq(bus, 0, &dev));
 	ut_assert(dev->flags & DM_FLAG_ACTIVATED);
-	ut_asserteq(0, device_find_child_by_seq(bus, 0, false, &dev));
+	ut_asserteq(0, device_find_child_by_seq(bus, 0, &dev));
 
 	/* There is no device with sequence number 2 */
-	ut_asserteq(-ENODEV, device_find_child_by_seq(bus, 2, false, &dev));
-	ut_asserteq(-ENODEV, device_find_child_by_seq(bus, 2, true, &dev));
+	ut_asserteq(-ENODEV, device_find_child_by_seq(bus, 2, &dev));
+	ut_asserteq(-ENODEV, device_find_child_by_seq(bus, 2, &dev));
 	ut_asserteq(-ENODEV, device_get_child_by_seq(bus, 2, &dev));
 
 	/* Looking for something that is not a child */
@@ -220,7 +220,7 @@
 	ut_asserteq_ptr(dev, NULL);
 
 	/* Move to the next child without using device_find_first_child() */
-	ut_assertok(device_find_child_by_seq(bus, 5, true, &dev));
+	ut_assertok(device_find_child_by_seq(bus, 5, &dev));
 	ut_asserteq_str("c-test@5", dev->name);
 	ut_assertok(device_find_next_child(&dev));
 	ut_asserteq_str("c-test@0", dev->name);
@@ -245,7 +245,7 @@
 	ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
 
 	/* Check that parent data is allocated */
-	ut_assertok(device_find_child_by_seq(bus, 0, true, &dev));
+	ut_assertok(device_find_child_by_seq(bus, 0, &dev));
 	ut_asserteq_ptr(NULL, dev_get_parent_priv(dev));
 	ut_assertok(device_get_child_by_seq(bus, 0, &dev));
 	parent_data = dev_get_parent_priv(dev);