dm: core: fix devfdt_remap_addr_index()

commit 30a90f56c3a2 ("dm: core: add functions to get memory-mapped I/O
addresses") introduced a devfdt_remap_addr_index() routine but it does
not make use of the index parameter.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

drivers/core/fdtaddr.c

@@ -138,7 +138,7 @@ void *devfdt_get_addr_ptr(struct udevice *dev)
 
 void *devfdt_remap_addr_index(struct udevice *dev, int index)
 {
-	fdt_addr_t addr = devfdt_get_addr(dev);
+	fdt_addr_t addr = devfdt_get_addr_index(dev, index);
 
 	if (addr == FDT_ADDR_T_NONE)
 		return NULL;