Ramaxel inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4CBDP
CVE: NA

Add NIC Layer support, include:
1. register net device to the kernel
2. implement the hooks of the 'struct net_device_ops' and
    'struct ethtool_ops'
3. etc.
Signed-off-by: NYanling Song <songyl@ramaxel.com>
Reviewed-by: NZhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>