Fix error history related comments

[SenRamakri]

Description

Fix wrong comments.

Pull request type

[x] Fix
[ ] Refactor
[ ] New target
[ ] Feature
[ ] Breaking change

[cmonr]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 2464
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/7354/

Triggering tests

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

[mbed-ci]

Exporter Build : SUCCESS

Build number : 2093
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/7354/

[mbed-ci]

Test : SUCCESS

Build number : 2240
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/7354/2240

[0xc0170]

I was looking today at similar macro related to crash dump. Where are these macros documented besides the code like in this header file? I did not find anything in the platform config, neither in the docs (overlooked by me?).

[SenRamakri]

@0xc0170 - The platform docs with these documented were merged yesterday - ARMmbed/mbed-os-5-docs#600

[0xc0170]

Thanks that one I was looking for !