BUG/MEDIUM: filter: Disable auto-close on channel during TCP payload filtering

BUG/MEDIUM: filter: Disable auto-close on channel during TCP payload filtering

While a filter is registered on the payload filter in TCP, it is important
to disable the auto-cloes on the corresponding channel. It is already
performed in HTTP. It is only an issue when the ->tcp_payload callback
function is defined.

Without this patch, the data blocked in a filter may be lost when the
producer shut its connection. In that case, we must take care to wait the
filter flushes pending data.

This patch should fix the issue #3457. It must be backported to all
supported versions.