ARM: dts: uniphier: remove skeleton.dtsi inclusion

Linux Commit 9c0da3cc61f1 ("ARM: dts: explicitly mark skeleton.dtsi
as deprecated") declared that skeleton.dtsi was deprecated.

Move the memory node below to suppress warnings of FDTGREP.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/dts/uniphier-pro4-sanji.dts b/arch/arm/dts/uniphier-pro4-sanji.dts
index d43f725..b103ba5 100644
--- a/arch/arm/dts/uniphier-pro4-sanji.dts
+++ b/arch/arm/dts/uniphier-pro4-sanji.dts
@@ -14,11 +14,6 @@
 	model = "UniPhier Pro4 Sanji Board";
 	compatible = "socionext,uniphier-pro4-sanji", "socionext,uniphier-pro4";
 
-	memory {
-		device_type = "memory";
-		reg = <0x80000000 0x80000000>;
-	};
-
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
@@ -33,6 +28,11 @@
 		i2c5 = &i2c5;
 		i2c6 = &i2c6;
 	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x80000000>;
+	};
 };
 
 &serial0 {