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/xilinx_axi_emac.c b/drivers/net/xilinx_axi_emac.c
index 2cd5596..35176c5 100644
--- a/drivers/net/xilinx_axi_emac.c
+++ b/drivers/net/xilinx_axi_emac.c
@@ -722,7 +722,7 @@
 	int offset = 0;
 	const char *phy_mode;
 
-	pdata->iobase = (phys_addr_t)devfdt_get_addr(dev);
+	pdata->iobase = devfdt_get_addr(dev);
 	priv->iobase = (struct axi_regs *)pdata->iobase;
 
 	offset = fdtdec_lookup_phandle(gd->fdt_blob, node,