staging: greybus: light: check the correct value of delay_on

When checking the value of delay_on to set the channel as active, it was
checked the pointer and not the value, as it should be.

Fixes: cc43368a3c ("greybus: lights: Control runtime pm suspend/resume on AP side")

Signed-off-by: Rui Miguel Silva <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/greybus/light.c

···
 	if (ret < 0)
 		goto out_pm_put;
 
-	if (delay_on)
+	if (*delay_on)
 		channel->active = true;
 	else
 		channel->active = false;