staging: mt7621-dts: Fix remaining pcie warnings

This currently fixes the remaining dtb warnings:

Node /pcie@1e140000/pcie0 has a reg or ranges property, but no unit name
Node /pcie@1e140000/pcie1 has a reg or ranges property, but no unit name
Node /pcie@1e140000/pcie2 has a reg or ranges property, but no unit name
Node /pcie@1e140000/pcie0 node name is not "pci" or "pcie"
Node /pcie@1e140000/pcie0 missing ranges for PCI bridge (or not a bridge)
Node /pcie@1e140000/pcie0 missing bus-range for PCI bridge
Node /pcie@1e140000/pcie1 node name is not "pci" or "pcie"
Node /pcie@1e140000/pcie1 missing ranges for PCI bridge (or not a bridge)
Node /pcie@1e140000/pcie1 missing bus-range for PCI bridge
Node /pcie@1e140000/pcie2 node name is not "pci" or "pcie"
Node /pcie@1e140000/pcie2 missing ranges for PCI bridge (or not a bridge)
Node /pcie@1e140000/pcie2 missing bus-range for PCI bridge
Warning (unit_address_format): Failed prerequisite 'pci_bridge'
Warning (pci_device_reg): Failed prerequisite 'pci_bridge'
Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'

device_type was removed since according to documentation, it's deprecated
for pci(e) devices.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-dts/gbpc1.dts

@@ -111,6 +111,8 @@ &cpuclock {
 };
 
 &pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_pins>;
 	status = "okay";
 };
 

drivers/staging/mt7621-dts/mt7621.dtsi

@@ -447,31 +447,28 @@ pcie: pcie@1e140000 {
 		clocks = <&clkctrl 24 &clkctrl 25 &clkctrl 26>;
 		clock-names = "pcie0", "pcie1", "pcie2";
 
-		pcie0 {
+		pcie@0,0 {
 			reg = <0x0000 0 0 0 0>;
-
 			#address-cells = <3>;
 			#size-cells = <2>;
-
-			device_type = "pci";
+			ranges;
+			bus-range = <0x00 0xff>;
 		};
 
-		pcie1 {
+		pcie@1,0 {
 			reg = <0x0800 0 0 0 0>;
-
 			#address-cells = <3>;
 			#size-cells = <2>;
-
-			device_type = "pci";
+			ranges;
+			bus-range = <0x00 0xff>;
 		};
 
-		pcie2 {
+		pcie@2,0 {
 			reg = <0x1000 0 0 0 0>;
-
 			#address-cells = <3>;
 			#size-cells = <2>;
-
-			device_type = "pci";
+			ranges;
+			bus-range = <0x00 0xff>;
 		};
 	};
 };