Enhancing kselftest to support BPF selftests

[vrbagalkot]

Supporting BPF selftest to the exsisting kselftest.

[narasimhan-v]

@vrbagalkot I see there are changes to how selftests are cloned and built as well. Can you please split into 2 commits.

Also, please paste logs

[vrbagalkot]

[root@ltcfuji8v4-lp17 ~]# avocado run --max-parallel-tasks=1 kselftest.py -m avocado-fvt-wrapper/tests/avocado-misc-tests/kernel/kselftest.py.data/bpf.yaml
Fetching asset from kselftest.py:kselftest.test
JOB ID : 134a6c9abc4a6d94c0bee8d10eb07d23681a69a2
JOB LOG : /root/avocado-fvt-wrapper/results/job-2025-03-03T03.48-134a6c9/job.log
(1/1) kselftest.py:kselftest.test;run-component-bpf-run_type-upstream-7a60: STARTED
(1/1) kselftest.py:kselftest.test;run-component-bpf-run_type-upstream-7a60: PASS (11657.09 s)
RESULTS : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
JOB HTML : /root/avocado-fvt-wrapper/results/job-2025-03-03T03.48-134a6c9/results.html
JOB TIME : 11675.12 s
[root@ltcfuji8v4-lp17 ~]#

[vrbagalkot]

Opened a separate PR #2942, hence closing this.