[Tooling] Optimize CCTRL test script on waiting time

[yufengwangca]

Reproduction steps / Feature

We can speed up the CCTRL test by not blindly waiting 30 seconds. What we can do is we can subscribe to the Fabrics attribute in step 1 and we can wait up to 30 seconds here for a change in subscriptions. We can do that here because we are expecting DUT to be successfully commission TH_SERVER in this case.

Platform

raspi

Platform Version(s)

No response

Type

Manually tested with SDK

(Optional) If manually tested please explain why this is only manually tested

No response

Anything else?

No response