PSA - Generate root of trust before accessing kvstore

[moshe-shahar]

Summary of changes

Tests and applications that use PSA, not have to generate ROT before calling PSA APIs

1. Fix PSA to generate root of trust before accessing kvstore.
   • An application that uses PSA should not be aware of how it's implemented. Therefore, let PSA handle kvstore requirements such as generating ROT.
2. Fix a minor issue that after calling psa_ps_reset, the version was not written again.

Impact of changes

Migration actions required

Documentation

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Pull request type

[x] Patch update (Bug fix / Target update / Docs update / Test update / Refactor)
[] Feature update (New feature / Functionality change / New API)
[] Major update (Breaking change E.g. Return code change / API behaviour change)

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Test results

[] No Tests required for this change (E.g docs only update)
[x] Covered by existing mbed-os tests (Greentea or Unittest)
[x] Tested locally. Results will be supplied as part of this PR on Sunday.

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Reviewers

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[mergify]

This PR cannot be merged due to conflicts. Please rebase to resolve them.

[ciarmcom]

@moshe-shahar, thank you for your changes.
@ARMmbed/mbed-os-core @ARMmbed/mbed-os-maintainers please review.

[yogpan01]

@0xc0170 This PR is required to enable PDMC support for PSA targets on mbed OS 6 onwards.

[adbridge]

@moshe-shahar could you please address the review comments and also fill in the test section in the header

[adbridge]

I'll run the CI in the meantime

[adbridge]

CI started

[mbed-ci]

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jenkins-ci/mbed-os-ci_unittests	✔️
jenkins-ci/mbed-os-ci_build-ARM	✔️
jenkins-ci/mbed-os-ci_build-GCC_ARM	✔️
jenkins-ci/mbed-os-ci_greentea-test	✔️
jenkins-ci/mbed-os-ci_dynamic-memory-usage	✔️
jenkins-ci/mbed-os-ci_cloud-client-pytest	✔️