driver: net: ldpaa: Use DPMAC as net device

As per current implementation of DPAA2 ethernet driver DPNI is used as
net device. DPNI is tangible objects can be multiple connected to same physical lane.

Use DPMAC as net device where it represents physical lane.
Below modification done in driver
 - Use global DPNI object
 - Connect DPMAC to DPNI
 - Create and destroy DPMAC

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/include/fsl-mc/fsl_mc_private.h b/include/fsl-mc/fsl_mc_private.h
index 191783a..17e0611 100644
--- a/include/fsl-mc/fsl_mc_private.h
+++ b/include/fsl-mc/fsl_mc_private.h
@@ -13,6 +13,7 @@
 #include <linux/compat.h>
 #include <linux/types.h>
 #include <linux/stringify.h>
+#include <phy.h>
 
 #include <fsl-mc/fsl_mc_sys.h>
 #include <fsl-mc/fsl_mc_cmd.h>
@@ -64,6 +65,6 @@
 extern struct fsl_dpni_obj *dflt_dpni;
 
 int mc_init(u64 mc_fw_addr, u64 mc_dpc_addr);
-int ldpaa_eth_init(int dpmac_id);
+int ldpaa_eth_init(int dpmac_id, phy_interface_t enet_if);
 int mc_apply_dpl(u64 mc_dpl_addr);
 #endif /* _FSL_MC_PRIVATE_H_ */