treewide: remove (phys_addr_t) casts from devfdt_get_addr()

This cast is unneeded.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
index 1a8351b..d8367b5 100644
--- a/drivers/net/mcffec.c
+++ b/drivers/net/mcffec.c
@@ -589,7 +589,7 @@
 	struct eth_pdata *pdata = dev_get_platdata(dev);
 	const u32 *val;
 
-	pdata->iobase = (phys_addr_t)devfdt_get_addr(dev);
+	pdata->iobase = devfdt_get_addr(dev);
 	/* Default to 10Mbit/s */
 	pdata->max_speed = 10;