riscv: dts: starfive: jh7100: fix root clock names

JH7100 clock controller driver depends on certain root clock names.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Closes: https://lore.kernel.org/all/CAMuHMdWw0dteXO2jw4cwGvzKcL6vmnb96C=qgPgUqNDMtF6X0Q@mail.gmail.com/
Fixes: f036064 ("riscv: dts: starfive: replace underscores in node names")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

Author: krzk

arch/riscv/boot/dts/starfive/jh7100.dtsi

@@ -116,27 +116,31 @@
 	osc_sys: osc-sys {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
+		clock-output-names = "osc_sys";
 		/* This value must be overridden by the board */
 		clock-frequency = <0>;
 	};
 
 	osc_aud: osc-aud {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
+		clock-output-names = "osc_aud";
 		/* This value must be overridden by the board */
 		clock-frequency = <0>;
 	};
 
 	gmac_rmii_ref: gmac-rmii-ref {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
+		clock-output-names = "gmac_rmii_ref";
 		/* Should be overridden by the board when needed */
 		clock-frequency = <0>;
 	};
 
 	gmac_gr_mii_rxclk: gmac-gr-mii-rxclk {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
+		clock-output-names = "gmac_gr_mii_rxclk";
 		/* Should be overridden by the board when needed */
 		clock-frequency = <0>;
 	};