Add FLASHIAP for MTB_STM_S2LP

[teetak01]

Description

Fix device management client compilation on MTB_STM_S2LP

./mbed-cloud-client/mbed-client-pal/Source/Port/Reference-Impl/OS_Specific/mbedOS/ROT/pal_plat_rot.cpp:67:5: error: 'DeviceKey' was not declared in this scope
DeviceKey &devkey = DeviceKey::get_instance();

Pull request type

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

Reviewers

@mikaleppanen @juhhei01 @katariinaliehu

Release Notes

[artokin]

CI started.

[mbed-ci]

Test run: FAILED

Summary: 1 of 11 test jobs failed
Build number : 1
Build artifacts

Failed test jobs:

• jenkins-ci/mbed-os-ci_cloud-client-test

[artokin]

Test failed with K66F: "Could not create api key HTTP status 403"

[0xc0170]

@artokin Looks like we get this problem now on master. let me create testing PR where we can take this further. Wait, this one is the good candidate to fix this!

@teetak01 Any known issue today why client test are failing for Mbed OS PR? or is this network problem

[teetak01]

@OPpuolitaival @0xc0170 the problem is in your Pelion test account used to run those tests. Most likely your CI has generated too many API-keys, and its unable to create new ones anymore.

[0xc0170]

cc @ARMmbed/mbed-os-test Need your help ^^

[0xc0170]

cloud client test restarted (should be now fixed)