leds: Clear LED_INIT_DEFAULT_TRIGGER when clearing current trigger

Not all triggers use LED_INIT_DEFAULT_TRIGGER, which means that it
will not get cleared when the default trigger is a trigger which
does not use it such as "default-on".

If the default trigger then later gets replaced by a trigger which
does check LED_INIT_DEFAULT_TRIGGER, such as "timer" then that trigger
will behave as if it is the default trigger which it should not do.

To fix this clear the LED_INIT_DEFAULT_TRIGGER flag when clearing
the current trigger, so that it will not be set for any subsequently
set (non default) triggers.

Signed-off-by: Hans de Goede <[e-mail]>
Reviewed-by: Jacek Anaszewski <[e-mail]>
Tested-by: Yauhen Kharuzhy <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/leds/led-triggers.c

···
 		led_cdev->trigger = NULL;
 		led_cdev->trigger_data = NULL;
 		led_cdev->activated = false;
+		led_cdev->flags &= ~LED_INIT_DEFAULT_TRIGGER;
 		led_set_brightness(led_cdev, LED_OFF);
 	}
 	if (trig) {