jack: fix member name in fastpath logs
The port struct's `id` member has been renamed to `port_id`,
but the `pw_log_trace_fp()` invocation sites weren't changed.
Fixes: 029539831d2d ("jack: rework port allocation")
The port struct's `id` member has been renamed to `port_id`,
but the `pw_log_trace_fp()` invocation sites weren't changed.
Fixes: 029539831d2d ("jack: rework port allocation")