PLB,SCT,SUB, and TMC test need to be updated for cime6.1.12

[fischer-ncar]

Issue Type

Infrastructure Update

Issue Description

In cime6.1.12 the location of append_testlog was moved in cime. So the PLB, SCT, SUB, and TMC test scripts need to be updated.

from CIME.utils import append_testlog

Needs to be changed to

from CIME.status import append_testlog

Will this change answers?

No

Will you be implementing this yourself?

No

[cacraigucar]

@brian-eaton - would this be a candidate for your PR #1131?