rockchip: rk3288-miqi: Remove unused work led node from xPL

The work led is not used in xPL on rk3288-miqi, remove bootph props from
the work led node to exclude it from xPL control FDT.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3288-miqi-u-boot.dtsi b/arch/arm/dts/rk3288-miqi-u-boot.dtsi
index ca83939..721d020 100644
--- a/arch/arm/dts/rk3288-miqi-u-boot.dtsi
+++ b/arch/arm/dts/rk3288-miqi-u-boot.dtsi
@@ -4,15 +4,6 @@
  */
 
 #include "rk3288-u-boot.dtsi"
-/ {
-	leds {
-		bootph-all;
-
-		work {
-			bootph-all;
-		};
-	};
-};
 
 &dmc {
 	rockchip,pctl-timing = <0x29a 0xc8 0x1f8 0x42 0x4e 0x4 0xea 0xa