Currently, we are overriding the bootloader provided MAC-s as the ethernet
aliases are reversed so MAC-s were fixed up in userspace.
There is no need to do that as we can just fix the aliases instead and get
rid of MAC setting via userspace helper.
Fixes: 59f0a0f ("ipq806x: add Edgecore ECW5410 support")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>