leds-lp55xx: use lp55xx common init function - detect

 LP5521/5523 chip detection functions are replaced with lp55xx common function,
 lp55xx_detect_device().
 Chip dependent address and values are configurable in each driver.
 In init function, chip detection is executed.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index a73ee0b..8175301 100644
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -31,9 +31,11 @@
 /*
  * struct lp55xx_device_config
  * @reset              : Chip specific reset command
+ * @enable             : Chip specific enable command
  */
 struct lp55xx_device_config {
 	const struct lp55xx_reg reset;
+	const struct lp55xx_reg enable;
 };
 
 /*