net: filter: rename sk_convert_filter() -> bpf_convert_filter()

to indicate that this function is converting classic BPF into eBPF
and not related to sockets

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc arch/x86/net/bpf_jit_comp.c
Simple merge

diff --cc include/linux/filter.h
Simple merge

diff --cc kernel/bpf/core.c
Simple merge

diff --cc kernel/seccomp.c
Simple merge

diff --cc net/core/filter.c
Simple merge