inet: frag: constify match, hashfn and constructor arguments

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc include/net/inet_frag.h
Simple merge

diff --cc include/net/ipv6.h
Simple merge

diff --cc net/ieee802154/reassembly.c
Simple merge

diff --cc net/ipv4/ip_fragment.c
Simple merge

diff --cc net/ipv6/netfilter/nf_conntrack_reasm.c
Simple merge

diff --cc net/ipv6/reassembly.c
Simple merge