ARM: dts: imx: fix the schema check errors

- ranges property should be grouped by region, with no functional
changes. Otherwise, schema dtbs_check would report the following errors.
"linux-imx/arch/arm/boot/dts/imx6qp-vicutp.dt.yaml: pcie@1ffc000: ranges: 'oneOf' conditional failed, one must be fixed:
linux-imx/arch/arm/boot/dts/imx6qp-vicutp.dt.yaml: pcie@1ffc000: ranges: 'oneOf' conditional failed, one must be fixed:
[[2164260864, 0, 0, 33030144, 0, 65536, 2181038080, 0, 16777216, 16777216, 0, 15728640]] is not of type 'boolean'
True was expected
[[2164260864, 0, 0, 33030144, 0, 65536, 2181038080, 0, 16777216, 16777216, 0, 15728640]] is not of type 'null'
[2164260864, 0, 0, 33030144, 0, 65536, 2181038080, 0, 16777216, 16777216, 0, 15728640] is too long
From schema: linux-imx/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml"
- refer to commit 281f1f99cf3a ("PCI: dwc: Detect number of iATU windows").
The num-viewport is not required anymore, remove them totally.
- dt_binding_check complains "compatible: ['fsl,imx6qp-pcie', 'snps,dw-pcie']
is too long", remove "snps,dw-pcie" from the compatible string.

Signed-off-by: Richard Zhu <[e-mail]>
Reviewed-by: Lucas Stach <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx6qdl.dtsi

···
 		};
 
 		pcie: pcie@1ffc000 {
-			compatible = "fsl,imx6q-pcie", "snps,dw-pcie";
+			compatible = "fsl,imx6q-pcie";
 			reg = <0x01ffc000 0x04000>,
 			      <0x01f00000 0x80000>;
 			reg-names = "dbi", "config";
···
 			#size-cells = <2>;
 			device_type = "pci";
 			bus-range = <0x00 0xff>;
-			ranges = <0x81000000 0 0          0x01f80000 0 0x00010000 /* downstream I/O */
-				  0x82000000 0 0x01000000 0x01000000 0 0x00f00000>; /* non-prefetchable memory */
+			ranges = <0x81000000 0 0          0x01f80000 0 0x00010000>, /* downstream I/O */
+				 <0x82000000 0 0x01000000 0x01000000 0 0x00f00000>; /* non-prefetchable memory */
 			num-lanes = <1>;
-			num-viewport = <4>;
 			interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "msi";
 			#interrupt-cells = <1>;

arch/arm/boot/dts/imx6qp.dtsi

···
 };
 
 &pcie {
-	compatible = "fsl,imx6qp-pcie", "snps,dw-pcie";
+	compatible = "fsl,imx6qp-pcie";
 };

arch/arm/boot/dts/imx6sx.dtsi

···
 		};
 
 		pcie: pcie@8ffc000 {
-			compatible = "fsl,imx6sx-pcie", "snps,dw-pcie";
+			compatible = "fsl,imx6sx-pcie";
 			reg = <0x08ffc000 0x04000>, <0x08f00000 0x80000>;
 			reg-names = "dbi", "config";
 			#address-cells = <3>;
 			#size-cells = <2>;
 			device_type = "pci";
 			bus-range = <0x00 0xff>;
-			ranges = <0x81000000 0 0          0x08f80000 0 0x00010000 /* downstream I/O */
-				  0x82000000 0 0x08000000 0x08000000 0 0x00f00000>; /* non-prefetchable memory */
+			ranges = <0x81000000 0 0          0x08f80000 0 0x00010000>, /* downstream I/O */
+				 <0x82000000 0 0x08000000 0x08000000 0 0x00f00000>; /* non-prefetchable memory */
 			num-lanes = <1>;
 			interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "msi";

arch/arm/boot/dts/imx7d.dtsi

···
 	};
 
 	pcie: pcie@33800000 {
-		compatible = "fsl,imx7d-pcie", "snps,dw-pcie";
+		compatible = "fsl,imx7d-pcie";
 		reg = <0x33800000 0x4000>,
 		      <0x4ff00000 0x80000>;
 		reg-names = "dbi", "config";
···
 		#size-cells = <2>;
 		device_type = "pci";
 		bus-range = <0x00 0xff>;
-		ranges = <0x81000000 0 0          0x4ff80000 0 0x00010000   /* downstream I/O */
-			  0x82000000 0 0x40000000 0x40000000 0 0x0ff00000>; /* non-prefetchable memory */
+		ranges = <0x81000000 0 0          0x4ff80000 0 0x00010000>, /* downstream I/O */
+			 <0x82000000 0 0x40000000 0x40000000 0 0x0ff00000>; /* non-prefetchable memory */
 		num-lanes = <1>;
-		num-viewport = <4>;
 		interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "msi";
 		#interrupt-cells = <1>;