dt-bindings: qcom_nandc: fix the ipq806x device tree example

1. Correct the compatible string for IPQ806x
2. Change the NAND controller and NAND chip nodes name
   for more clarity.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>

Documentation/devicetree/bindings/mtd/qcom_nandc.txt

@@ -42,8 +42,8 @@ partition.txt for more detail.
 
 Example:
 
-nand@1ac00000 {
-	compatible = "qcom,ebi2-nandc";
+nand-controller@1ac00000 {
+	compatible = "qcom,ipq806x-nand";
 	reg = <0x1ac00000 0x800>;
 
 	clocks = <&gcc EBI2_CLK>,
@@ -58,7 +58,7 @@ nand@1ac00000 {
 	#address-cells = <1>;
 	#size-cells = <0>;
 
-	nandcs@0 {
+	nand@0 {
 		reg = <0>;
 
 		nand-ecc-strength = <4>;