net: filter: mention eBPF terminology as well
net: filter: mention eBPF terminology as well

Since the term eBPF is used anyway on mailing list discussions, lets
also document that in the main BPF documentation file and replace a
couple of occurrences with eBPF terminology to be more clear.

Signed-off-by: Alexei Starovoitov <c24c0248770ae98831f8a654310d4c2e07514c61@plumgrid.com>
Signed-off-by: Daniel Borkmann <9ff04a02a69f376b2b9aeec27187017cbf3cf5f9@redhat.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs