powerpc/85xx: Enable enhanced functions for 8536 TSEC

Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/dts/mpc8536ds.dts

@@ -180,7 +180,7 @@ usb@23000 {
 		enet0: ethernet@24000 {
 			cell-index = <0>;
 			device_type = "network";
-			model = "TSEC";
+			model = "eTSEC";
 			compatible = "gianfar";
 			reg = <0x24000 0x1000>;
 			local-mac-address = [ 00 00 00 00 00 00 ];
@@ -193,7 +193,7 @@ enet0: ethernet@24000 {
 		enet1: ethernet@26000 {
 			cell-index = <1>;
 			device_type = "network";
-			model = "TSEC";
+			model = "eTSEC";
 			compatible = "gianfar";
 			reg = <0x26000 0x1000>;
 			local-mac-address = [ 00 00 00 00 00 00 ];