ramips: fix rt3883 pci pinmux

The PCI pins need to be set to "PCI Host support one device" to allow
the use of one PCI device and flash memory.

The pci-fnc function is intended to be used if no PCI is used but
flash, nand or the codec functionality is.

Signed-off-by: Mathias Kresin <dev@kresin.me>

target/linux/ramips/dts/rt3883.dtsi

@@ -310,7 +310,7 @@
 		pci_pins: pci {
 			pci {
 				ralink,group = "pci";
-				ralink,function = "pci-fnc";
+				ralink,function = "pci-host1";
 			};
 		};
 	};