fix ethernet and wifi can't be tuned seperately issue

ethernet especially Gigabit enet use the same tune data with wifi
won't reach best performance.

Change-Id: Iac50ba47904c76ff7b5b8ad226e83451359ec534
Signed-off-by: Jianzheng Zhou <jianzheng.zhou@freescale.com>
Merge "fix ethernet and wifi can't be tuned seperately issue"