powerpc/fsl/dts: Enable WA for erratum A-009885 on fman3l MDIO buses

This block is used in (at least) T1024 and T1040, including their
variants like T1023 etc.

Fixes: d55ad296 ("powerpc/mpc85xx: Create dts components for the FSL QorIQ DPAA FMan")
Signed-off-by: NTobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi

@@ -79,6 +79,7 @@ fman0: fman@400000 {
 		#size-cells = <0>;
 		compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
 		reg = <0xfc000 0x1000>;
+		fsl,erratum-a009885;
 	};
 
 	xmdio0: mdio@fd000 {
@@ -86,6 +87,7 @@ fman0: fman@400000 {
 		#size-cells = <0>;
 		compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
 		reg = <0xfd000 0x1000>;
+		fsl,erratum-a009885;
 	};
 };