Typo in USBSerial.h function prevents compilation

[rvasquez6089]

Description

In one of attach function calls in the USBSerial class, the object pointer is flipped with the location of the static location of the function. This prevents code from compiling when using the the attach function properly. Just a small typo that needed fixing.

rx = mbed::Callback<void()>(mptr, tptr); <--- Incorrect

rx = mbed::Callback<void()>(tptr, mptr); <----Correct
to match this function prototype ---> Callback(U *obj, R(T::*method)())

Pull request type

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

Reviewers

Release Notes

[ciarmcom]

@rvasquez6089, thank you for your changes.
@ARMmbed/mbed-os-core @ARMmbed/mbed-os-maintainers please review.

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CI started

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CI restarted

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cc @mbed-os-test - also this one - client test failing

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cc @mbed-os-test - also this one - client test failing

Known issue, will be restarted once fixed

[mbed-ci]

Test run: FAILED

Summary: 1 of 11 test jobs failed
Build number : 2
Build artifacts

Failed test jobs:

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

[adbridge]

restarted

[mbed-ci]

Test run: SUCCESS

Summary: 11 of 11 test jobs passed
Build number : 3
Build artifacts

[bulislaw]

How is that tested that we didn't catch this issue? @jamesbeyond