kernel/kselftest: Modify kselftest to run cpufreq testcases

[AYUSHJAIN951]

Modify kselftest.py to run upstream cpufreq testcase
Adding kselftest_cpufreq.yaml and modified kselftest.yaml
to run with basic mode of cpufreq.yaml.
Tests to run with upstream kernel only.

[narasimhan-v]

@AYUSHJAIN951 please paste job.log or relevant snippet ?

[AYUSHJAIN951]

$$ avocado run --max-parallel-tasks 1 kselftest.py -m kselftest.py.data/kselftest_upstream.yaml 
Fetching asset from kselftest.py:kselftest.test
JOB ID     : da4f659d69465cad5ff1f6f772285fa79704da1e
JOB LOG    : /*/tests/results/job-2024-03-05T20.35-da4f659/job.log
 (1/6) kselftest.py:kselftest.test;run-component-cpufreq-test_modes-basic-run_type-upstream-1a28: STARTED
 (1/6) kselftest.py:kselftest.test;run-component-cpufreq-test_modes-basic-run_type-upstream-1a28:  PASS (222.30 s)
 (2/6) kselftest.py:kselftest.test;run-component-cpufreq-test_modes-sptest1-run_type-upstream-ddc2: STARTED
 (2/6) kselftest.py:kselftest.test;run-component-cpufreq-test_modes-sptest1-run_type-upstream-ddc2:  PASS (21.95 s)
 (3/6) kselftest.py:kselftest.test;run-component-cpufreq-test_modes-sptest2-run_type-upstream-ab5f: STARTED
 (3/6) kselftest.py:kselftest.test;run-component-cpufreq-test_modes-sptest2-run_type-upstream-ab5f:  PASS (817.19 s)
 (4/6) kselftest.py:kselftest.test;run-component-cpufreq-test_modes-sptest3-run_type-upstream-1b4d: STARTED
 (4/6) kselftest.py:kselftest.test;run-component-cpufreq-test_modes-sptest3-run_type-upstream-1b4d:  PASS (281.70 s)
 (5/6) kselftest.py:kselftest.test;run-component-mm-run_type-upstream-f225: STARTED
 (5/6) kselftest.py:kselftest.test;run-component-mm-run_type-upstream-f225:  FAIL: Testcase failed during selftests (418.23 s)
 (6/6) kselftest.py:kselftest.test;run-component-mem_plug-run_type-upstream-f954: STARTED
 (6/6) kselftest.py:kselftest.test;run-component-mem_plug-run_type-upstream-f954:  PASS (212.24 s)
RESULTS    : PASS 5 | ERROR 0 | FAIL 1 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
JOB HTML   : /*/tests/results/job-2024-03-05T20.35-da4f659/results.html
JOB TIME   : 1979.83 s

debug.log.txt