ARM: zynq: Remove skeleton.dtsi

Based on
"ARM: dts: explicitly mark skeleton.dtsi as deprecated"
(sha1: 9c0da3cc61f1233c2782e2d3d91e3d0707dd4ba5)
skeleton.dtsi is deprecated.
Move address and size-cells directly to zynq-7000.dtsi.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Julia Cartwright <julia@ni.com>

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

@@ -10,9 +10,10 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
-/include/ "skeleton.dtsi"
 
 / {
+	#address-cells = <1>;
+	#size-cells = <1>;
 	compatible = "xlnx,zynq-7000";
 
 	cpus {