dt: rp1: Use clk_sys for ethernet hclk and pclk

hclk and pclk of the MAC are connected to clk_sys, so define
them as being connected accordingly, rather than having fake
fixed clocks for them.

Signed-off-by: Dave Stevenson <[email protected]>

arch/arm64/boot/dts/broadcom/rp1.dtsi

@@ -974,7 +974,8 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			interrupts = <RP1_INT_ETH IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&macb_pclk &macb_hclk
+			clocks = <&rp1_clocks RP1_CLK_SYS
+				  &rp1_clocks RP1_CLK_SYS
 				  &rp1_clocks RP1_CLK_ETH_TSU
 				  &rp1_clocks RP1_CLK_ETH>;
 			clock-names = "pclk", "hclk", "tsu_clk", "tx_clk";
@@ -1197,18 +1198,6 @@
 		clock-output-names = "xosc";
 		clock-frequency = <50000000>;
 	};
-	macb_pclk: macb_pclk {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-output-names = "pclk";
-		clock-frequency = <200000000>;
-	};
-	macb_hclk: macb_hclk {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-output-names = "hclk";
-		clock-frequency = <200000000>;
-	};
 	sdio_src: sdio_src {
 		// 400 MHz on FPGA. PLL sys VCO on asic
 		compatible = "fixed-clock";