Refactoring: Use Netlink to get netdevice information instead of sysfs where possible

[adrianchiris]

Currently we get some netdevice information from sysfs (/sys/class/net//...) and some via netlink.
we should use netlink where possible for implementations of interfaces under host pkg.

From review of the code, where we can switch to netlink is for mtu and mac.

[alkama-hasan]

Hi @adrianchiris, as i see in the case of mtu and mac it is already using netlink library instead of sysfs (i am referring to pkg/host/internal/network/network.go
but we can use for ifindex also or any more suggestions to replace more low level of accessing filesystem with libraries such as
ghw for getting name from pciAddress or any similar ?let's have a thought on it