riscv: dts: microchip: remove spi-max-frequency property

Remove the spi-max-frequency property from the spi0 controller
node as it is supposed to be a per SPI peripheral device property.

Reported-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/lkml/[email protected]/
Signed-off-by: Nagasuresh Relli <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>

Author: nagasureshmchp

arch/riscv/boot/dts/microchip/mpfs.dtsi

@@ -278,7 +278,6 @@
 			interrupt-parent = <&plic>;
 			interrupts = <54>;
 			clocks = <&clkcfg CLK_SPI0>;
-			spi-max-frequency = <25000000>;
 			status = "disabled";
 		};