arm64: zynqmp: Disable ltc2952 poweroff chip

This chip is on the board but handling should be done via firmware not
via Linux driver. Changing status property to keep it in the tree to
describe it instead of removing this node completely.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/dts/zynqmp-zcu100-revC.dts b/arch/arm/dts/zynqmp-zcu100-revC.dts
index 2fffe17..05491e9 100644
--- a/arch/arm/dts/zynqmp-zcu100-revC.dts
+++ b/arch/arm/dts/zynqmp-zcu100-revC.dts
@@ -104,6 +104,7 @@
 
 	ltc2954: ltc2954 { /* U7 */
 		compatible = "lltc,ltc2954", "lltc,ltc2952";
+		status = "disabled";
 		trigger-gpios = <&gpio 26 GPIO_ACTIVE_LOW>; /* INT line - input */
 		/* If there is HW watchdog on mezzanine this signal should be connected there */
 		watchdog-gpios = <&gpio 35 GPIO_ACTIVE_HIGH>; /* MIO on PAD */