mpc85xx: fix up m25p80 device id (#21286)

Signed-off-by: Felix Fietkau <[email protected]>

SVN-Revision: 47691

target/linux/mpc85xx/files/arch/powerpc/boot/dts/tl-wdr4900-v1.dts

@@ -37,7 +37,7 @@
 			flash@0 {
 				#address-cells = <1>;
 				#size-cells = <1>;
-				compatible = "spansion,s25fl129p1";
+				compatible = "jedec,spi-nor";
 				reg = <0>;
 				spi-max-frequency = <25000000>;