netfilter: flowtable: move skb_try_make_writable() before NAT in IPv4

For consistency with the IPv6 flowtable datapath and to make sure the
skbuff is writable right before the NAT header updates.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2021-03-17 15:54:43 +01:00
commit 2babb46c8c