Make MBED_MEM_TRACING_ENABLED an application config option

[0Grit]

Note: This is just a template, so feel free to use/remove the unnecessary things

Description

Enhancement

• Related issue: Handbook-#275
• Priority: Minor

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Enhancement

Reason to enhance or problem with existing solution
Confusion regarding the difference between an application config option and target/toolchain specific options

Suggested enhancement
Make MBED_MEM_TRACING_ENABLED an application config option

Pros
Improved OS configuration intuitiveness

Cons
Unsure

[0xc0170]

👍 for having this configurable via a config

cc @c1728p9
[Mirrored to Jira]

[bmcdonnell-ionx]

For reference,

https://os.mbed.com/docs/v5.7/tutorials/optimizing.html#runtime-memory-tracing

Using the memory tracer

The memory tracer is not enabled by default. To enable it, you need to define the MBED_MEM_TRACING_ENABLED macro. The recommended way to define this macro is to add it to the list of macros defined in your mbed_app.json:

{
    "macros": ["MBED_MEM_TRACING_ENABLED"]
}

[Mirrored to Jira]

[adbridge]

Internal Jira reference: https://jira.arm.com/browse/IOTCORE-182

[deepikabhavnani]

Resolved by : #7402