arm: dt: zynq: Remove 'clock-ranges' from TTC nodes

The bindings for the TTC changed in commit 'arm: zynq: Use standard
timer binding' (e932900a32). That change
removed possible subnodes from this driver rendering the 'clock-ranges'
property invalid for this node.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/boot/dts/zynq-7000.dtsi

@@ -124,7 +124,6 @@
 			compatible = "cdns,ttc";
 			clocks = <&clkc 6>;
 			reg = <0xF8001000 0x1000>;
-			clock-ranges;
 		};
 
 		ttc1: ttc1@f8002000 {
@@ -133,7 +132,6 @@
 			compatible = "cdns,ttc";
 			clocks = <&clkc 6>;
 			reg = <0xF8002000 0x1000>;
-			clock-ranges;
 		};
 		scutimer: scutimer@f8f00600 {
 			interrupt-parent = <&intc>;