Compliance test errors fixed

[AnttiKauppila]

Description

While running pre-certification test for LoRaWAN stack few issues were found. Those are fixed in this PR

Pull request type

[X] Fix
[ ] Refactor
[ ] Target update
[ ] Functionality change
[ ] Docs update
[ ] Test update
[ ] Breaking change

[AnttiKauppila]

@kivaisan @hasnainvirk Please review

[hasnainvirk]

Looks good to me.

[cmonr]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 3630
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/8735/

Triggering tests

/morph test
/morph export-build
/morph mbed2-build

[mbed-ci]

Exporter Build : FAILURE

Build number : 3237
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/8735/

[cmonr]

Well, on the plus side, the number of subjobs that failed the Export CI is the lowest of the night...

Will restart when able.

[mbed-ci]

Test : FAILURE

Build number : 3413
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/8735/3413

[cmonr]

NRF52 rtc issue.
Will restart when able.

[cmonr]

Info: This PR has now been bundled into a rollup PR (#8760).

The CI failures that this PR saw do not appear to be the fault of the PR. To save time in retesting this PR, along with other PRs that experienced similar issues, it has been bundled into a rollup PR.

If any more commits are made in this PR, this PR will remain open and have to go through CI on its own.

[cmonr]

Info: This PR has been re-bundled into a new rollup PR (#8763).

The previous rollup found an issue with a bundled PR after new devices were added into master. The PR needing work has been removed.

No further work is needed here, as once that PR is merged, this PR will also be closed and marked as merged.
If any more commits are made in this PR, this PR will remain open and have to go through CI on its own.