ARM: dts: uniphier: change phy-mode to 'internal' for LD11

Change the phy-mode property to 'internal' that means to use a built-in PHY
implemented on LD11 SoC.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/dts/uniphier-ld11.dtsi

@@ -557,7 +557,7 @@
 			clocks = <&sys_clk 6>;
 			reset-names = "ether";
 			resets = <&sys_rst 6>;
-			phy-mode = "rmii";
+			phy-mode = "internal";
 			local-mac-address = [00 00 00 00 00 00];
 			socionext,syscon-phy-mode = <&soc_glue 0>;