arm64: dts: Add timer erratum property for LS2080A and LS1043A

Both the LS1043A and LS2080A platforms are affected by the Freescale
A008585 erratum. Advertise it in their respective device trees.
Signed-off-by: NScott Wood <oss@buserror.net>
Acked-by: NMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi

@@ -123,6 +123,7 @@
 			     <1 14 0xf08>, /* Physical Non-Secure PPI */
 			     <1 11 0xf08>, /* Virtual PPI */
 			     <1 10 0xf08>; /* Hypervisor PPI */
+		fsl,erratum-a008585;
 	};
 
 	pmu {

arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi

@@ -195,6 +195,7 @@
 			     <1 14 4>, /* Physical Non-Secure PPI, active-low */
 			     <1 11 4>, /* Virtual PPI, active-low */
 			     <1 10 4>; /* Hypervisor PPI, active-low */
+		fsl,erratum-a008585;
 	};
 
 	pmu {