ARM: dts: uniphier: add clock-names and reset-names to ethernet node

Add clock-names and reset-names because this node recognizes multiple
clocks and resets.  ("ether", and so on, for each)

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/dts/uniphier-ld20.dtsi b/arch/arm/dts/uniphier-ld20.dtsi
index b25232d..b36adb9 100644
--- a/arch/arm/dts/uniphier-ld20.dtsi
+++ b/arch/arm/dts/uniphier-ld20.dtsi
@@ -622,7 +622,9 @@
 			interrupts = <0 66 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_ether_rgmii>;
+			clock-names = "ether";
 			clocks = <&sys_clk 6>;
+			reset-names = "ether";
 			resets = <&sys_rst 6>;
 			phy-mode = "rgmii";
 			local-mac-address = [00 00 00 00 00 00];