samples: ipc: Update openamp rsc table documentation

This change follow the recent commit that update openamp rsc table logs.
Add the logs for both samples sample client & TTY responder,
as well as for both sides Linux & Zephyr.
Remove the serial connection to Zephyr because it is board specific.

Signed-off-by: Marc-Antoine Riou <marc-antoine.riou@iot.bzh>