DAOS-16799 vos: handle concurrent pool_open in VOS

[Nasf-Fan]

The pool_open() logic maybe yield in VOS, then it is possible that multiple pool_open() sponsors open the same vos pool concurrently. This patch serializes such concurrent pool_open() and handle kinds of race conditions.

Test-tag: pool_list_consolidation
Skip-func-hw-test-medium-md-on-ssd: false
Allow-unstable-test: true

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[github-actions]

Ticket title is 'recovery/pool_list_consolidation.py:PoolListConsolidationTest.test_orphan_pool_trust_ps - pool_hop_free() Assertion 'pool->vp_opened == 0' failed'
Status is 'In Progress'
Labels: 'ci_master_daily,daily_test'
https://daosio.atlassian.net/browse/DAOS-16799

[daosbuild1]

Test stage Unit Test bdev on EL 8.8 completed with status UNSTABLE. https://build.hpdd.intel.com/job/daos-stack/job/daos//view/change-requests/job/PR-15524/1/testReport/

[daosbuild1]

Test stage Unit Test bdev with memcheck on EL 8.8 completed with status UNSTABLE. https://build.hpdd.intel.com/job/daos-stack/job/daos//view/change-requests/job/PR-15524/1/testReport/

[daosbuild1]

Test stage Unit Test on EL 8.8 completed with status UNSTABLE. https://build.hpdd.intel.com/job/daos-stack/job/daos//view/change-requests/job/PR-15524/1/testReport/

[daosbuild1]

Test stage NLT on EL 8.8 completed with status UNSTABLE. https://build.hpdd.intel.com/job/daos-stack/job/daos//view/change-requests/job/PR-15524/1/testReport/

[daosbuild1]

Test stage Unit Test with memcheck on EL 8.8 completed with status UNSTABLE. https://build.hpdd.intel.com/job/daos-stack/job/daos//view/change-requests/job/PR-15524/1/testReport/

[daosbuild1]

Test stage Functional Hardware Medium MD on SSD completed with status FAILURE. https://build.hpdd.intel.com//job/daos-stack/job/daos/view/change-requests/job/PR-15524/2/execution/node/1336/log

[daosbuild1]

Test stage Functional Hardware Medium completed with status FAILURE. https://build.hpdd.intel.com//job/daos-stack/job/daos/view/change-requests/job/PR-15524/2/execution/node/1434/log