STM32: astyle update

[jeromecoutant]

Summary of changes

This PR fixes all astyle issues merged in previous patches...

Impact of changes

none

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)
[] Tests / results supplied as part of this PR

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Reviewers

@ARMmbed/team-st-mcd

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[0xc0170]

CI started (might be aborted, need to quickly test unittests on master)

[0xc0170]

Aborted, there is an issue. Will restart CI once 5.15rc2 jobs are done.

[mbed-ci]

Test run: FAILED

Summary: 4 of 4 test jobs failed
Build number : 1
Build artifacts

Failed test jobs:

• jenkins-ci/mbed-os-ci_unittests
• jenkins-ci/mbed-os-ci_build-IAR
• jenkins-ci/mbed-os-ci_build-ARM
• jenkins-ci/mbed-os-ci_build-GCC_ARM

[mbed-ci]

Test run: SUCCESS

Summary: 12 of 12 test jobs passed
Build number : 2
Build artifacts