Modify our get and set LED functions so they ignore activity LEDs,
as we are required to blink the link LEDs only.

Change-ID: I647ea67a6fc95cbbab6e3cd01d81ec9ae096a9ad
Signed-off-by: Matt Jared <matthew.a.jared@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>