ARM: dts: am335x-baltos: use phy-phandle declarations

phy-phandle is now a preferred method to reference a PHY device.
Especially in regards to cpsw it enables PHY specific settings like
max-speed etc. being specified in DTS.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/boot/dts/am335x-baltos-ir5221.dts b/arch/arm/boot/dts/am335x-baltos-ir5221.dts
index f599350..2b9d7f4 100644
--- a/arch/arm/boot/dts/am335x-baltos-ir5221.dts
+++ b/arch/arm/boot/dts/am335x-baltos-ir5221.dts
@@ -127,9 +127,9 @@
 };
 
 &cpsw_emac1 {
-	phy_id = <&davinci_mdio>, <7>;
 	phy-mode = "rgmii-txid";
 	dual_emac_res_vlan = <2>;
+	phy-handle = <&phy1>;
 };
 
 &phy_sel {