backlight: lm3533-backlight: Use backlight power constants

Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality.

Signed-off-by: Thomas Zimmermann <[e-mail]>
Reviewed-by: Daniel Thompson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/video/backlight/lm3533_bl.c

···
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/backlight.h>
-#include <linux/fb.h>
 #include <linux/slab.h>
 
 #include <linux/mfd/lm3533.h>
···
 
 	dev_dbg(&bd->dev, "%s\n", __func__);
 
-	bd->props.power = FB_BLANK_POWERDOWN;
+	bd->props.power = BACKLIGHT_POWER_OFF;
 	bd->props.brightness = 0;
 
 	lm3533_ctrlbank_disable(&bl->cb);