sandbox: pci: Increase the memory space

Increase the memory space so we can support the p2sb bus which needs
multiples of 1MB.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 50d245a..5e859ba 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -447,7 +447,7 @@
 		device_type = "pci";
 		#address-cells = <3>;
 		#size-cells = <2>;
-		ranges = <0x02000000 0 0x10000000 0x10000000 0 0x2000
+		ranges = <0x02000000 0 0x10000000 0x10000000 0 0x2000000
 				0x01000000 0 0x20000000 0x20000000 0 0x2000>;
 		pci@0,0 {
 			compatible = "pci-generic";