board/ls2085qds: Add support ethernet

Add support of ethernet:
 - eth.c: mapping lane to slot for (0x2A, 0x07)
 - ls2085a.c: To enable/disable dpmac and get link type

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/ls2085aqds/Makefile b/board/freescale/ls2085aqds/Makefile
index f174f33..da69a7d 100644
--- a/board/freescale/ls2085aqds/Makefile
+++ b/board/freescale/ls2085aqds/Makefile
@@ -6,3 +6,4 @@
 
 obj-y += ls2085aqds.o
 obj-y += ddr.o
+obj-y += eth.o