[PATCH v2] aarch64: Add MTE mode tunable

[Wilco Dijkstra]

Hi Yury,

>> Do we need the else if we skip initialization if the HWCAP is set
>> but the tunable is not? If we can rely on default initialization to
>> MTE_MODE_DISABLED in that case, why not here too?
>
> This makes sense. After all, we do it for the GCS tunable. I'll fix
> this. In case this is the only comment for v2, should I send v3?

It's OK for commit with this fix.

Cheers,
Wilco