ether_addr_equal() was added in Linux 3.5. compare_ether_addr() was
deleted in 3.14. Start using ether_addr_equal() and provide an own
implementation for older kernels.
This fixes the compilation with Linux 3.14-rc1.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>