arm64: dts: freescale: imx8-ss-dma: set lpspi0 max frequency to 60mhz

60MHz is the maximum frequency mentioned in the datasheet for
master mode. Set that to 60MHz to match lpspi2.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi

@@ -31,7 +31,7 @@ lpspi0: spi@5a000000 {
 			 <&spi0_lpcg 1>;
 		clock-names = "per", "ipg";
 		assigned-clocks = <&clk IMX_SC_R_SPI_0 IMX_SC_PM_CLK_PER>;
-		assigned-clock-rates = <20000000>;
+		assigned-clock-rates = <60000000>;
 		power-domains = <&pd IMX_SC_R_SPI_0>;
 		status = "disabled";
 	};