Gate ticker (timer0) clock on deepsleep for MAX32620FTHR

[ahmetalincak]

Summary of changes

Gate ticker clock on deepsleep to stop ticking. Fixes Greentea sleep tests for MAX32620FTHR.

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

max32620fthr_greentea_test_log.log

[] No Tests required for this change (E.g docs only update)
[X] Covered by existing mbed-os tests (Greentea or Unittest)
[] Tests / results supplied as part of this PR

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Reviewers

@MarceloSalazar @0xc0170

[ciarmcom]

@ahmetalincak, thank you for your changes.
@0xc0170 @MarceloSalazar @ARMmbed/mbed-os-maintainers please review.

[0xc0170]

Gate ticker clock on deepsleep to stop ticking. Fixes Greentea sleep tests for MAX32620FTHR.

What tests exactly were failing (which ones were red and are now green) ? I recall some issues related to this, was this reported earlier (should be referenced) ?

[0xc0170]

Ci started

[mbed-ci]

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jobs	Status
jenkins-ci/mbed-os-ci_cmake-example-ARM	✔️
jenkins-ci/mbed-os-ci_unittests	✔️
jenkins-ci/mbed-os-ci_cmake-cloud-example-GCC_ARM	✔️
jenkins-ci/mbed-os-ci_cmake-cloud-example-ARM	✔️
jenkins-ci/mbed-os-ci_build-example-ARM	✔️
jenkins-ci/mbed-os-ci_cmake-example-GCC_ARM	✔️
jenkins-ci/mbed-os-ci_build-cloud-example-ARM	✔️
jenkins-ci/mbed-os-ci_build-greentea-ARM	✔️
jenkins-ci/mbed-os-ci_build-example-GCC_ARM	✔️
jenkins-ci/mbed-os-ci_build-cloud-example-GCC_ARM	✔️
jenkins-ci/mbed-os-ci_build-greentea-GCC_ARM	✔️
jenkins-ci/mbed-os-ci_greentea-test	✔️