rockchip: rk3188: Fix the code support for SPL_LED

Fix the build error for the wrong code when CONFIG_SPL_LED is enabled.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/rk3188/rk3188.c b/arch/arm/mach-rockchip/rk3188/rk3188.c
index 1b2f4a4..222953a 100644
--- a/arch/arm/mach-rockchip/rk3188/rk3188.c
+++ b/arch/arm/mach-rockchip/rk3188/rk3188.c
@@ -6,6 +6,7 @@
 #include <dm.h>
 #include <hang.h>
 #include <init.h>
+#include <led.h>
 #include <log.h>
 #include <syscon.h>
 #include <asm/io.h>
@@ -105,6 +106,7 @@
 }
 
 #ifdef CONFIG_SPL_BUILD
+DECLARE_GLOBAL_DATA_PTR;
 static int setup_led(void)
 {
 #ifdef CONFIG_SPL_LED
@@ -120,7 +122,7 @@
 		debug("%s: get=%d\n", __func__, ret);
 		return ret;
 	}
-	ret = led_set_on(dev, 1);
+	ret = led_set_state(dev, LEDST_ON);
 	if (ret)
 		return ret;
 #endif