MIPS: Loongson64: DTS: Fix ISA and PCI I/O ranges for RS780E PCH

Ranges should express the actual physical address on bus.
Also enlarge the PCI I/O size to the actual hardware limit.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/boot/dts/loongson/rs780e-pch.dtsi

@@ -17,7 +17,7 @@ pci@1a000000 {
 
 			reg = <0 0x1a000000 0 0x02000000>;
 
-			ranges = <0x01000000 0 0x00004000 0 0x18004000 0 0x00008000>,
+			ranges = <0x01000000 0 0x00004000 0 0x18004000 0 0x0000c000>,
 				 <0x02000000 0 0x40000000 0 0x40000000 0 0x40000000>;
 		};
 
@@ -25,7 +25,7 @@ isa {
 			compatible = "isa";
 			#address-cells = <2>;
 			#size-cells = <1>;
-			ranges = <1 0 0 0 0x4000>;
+			ranges = <1 0 0 0x18000000 0x4000>;
 
 			rtc0: rtc@70 {
 				compatible = "motorola,mc146818";