MIPS:DTS:Correct device id of pcie for Loongnon-2K

from Loongson-2K user manual know that Loongson-2K have two
pcie controller pcie0 and pcie1, pcie0 have four port named port0~port3
and pcie1 have 2 port named port0~port1. the device id of port0 is 7a19
in each pcie controller and others are 7a09.
Signed-off-by: NXiaochuan Mao <maoxiaochuan@loongson.cn>
Reviewed-by: NJiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi

@@ -163,8 +163,8 @@
 			};
 
 			pci_bridge@a,0 {
-				compatible = "pci0014,7a19.0",
-						   "pci0014,7a19",
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
 						   "pciclass060400",
 						   "pciclass0604";
 
@@ -178,8 +178,8 @@
 			};
 
 			pci_bridge@b,0 {
-				compatible = "pci0014,7a19.0",
-						   "pci0014,7a19",
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
 						   "pciclass060400",
 						   "pciclass0604";
 
@@ -193,8 +193,8 @@
 			};
 
 			pci_bridge@c,0 {
-				compatible = "pci0014,7a19.0",
-						   "pci0014,7a19",
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
 						   "pciclass060400",
 						   "pciclass0604";
 
@@ -223,8 +223,8 @@
 			};
 
 			pci_bridge@e,0 {
-				compatible = "pci0014,7a19.0",
-						   "pci0014,7a19",
+				compatible = "pci0014,7a09.0",
+						   "pci0014,7a09",
 						   "pciclass060400",
 						   "pciclass0604";