dm: core: Correct low cell in ofnode_read_pci_addr()

This reads the low cell of the PCI address from the wrong cell. Fix it.
Also fix the function that this code came from.

Fixes: 9e51204527 (dm: core: Add operations on device tree references)
Fixes: 4ea5243a3a (fdt: fix fdtdec_get_pci_addr() for CONFIG_PHYS_64BIT)
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 7eca00c..5d47ecc 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -617,7 +617,7 @@
 			if ((fdt32_to_cpu(*cell) & type) == type) {
 				addr->phys_hi = fdt32_to_cpu(cell[0]);
 				addr->phys_mid = fdt32_to_cpu(cell[1]);
-				addr->phys_lo = fdt32_to_cpu(cell[1]);
+				addr->phys_lo = fdt32_to_cpu(cell[2]);
 				break;
 			}