ipv4: Use inet_sk_init_flowi4() in ip4_datagram_release_cb().

Use inet_sk_init_flowi4() to automatically initialise the flowi4
structure in ip4_datagram_release_cb() instead of passing parameters
manually to ip_route_output_ports().

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Link: https://patch.msgid.link/9c326b8d9e919478f7952b21473d31da07eba2dd.1734357769.git.gnault@redhat.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>