[EXTERNAL] [RFC] net/cnxk: only build if platform is specified

[Pavan Nikhilesh Bhagavatula]

>> >Good idea, but fails miserably.
>>
>> My bad, here is the full fix, verified on our arm64 machine with
>> meson setup build -Dplatform=generic
>
>
>Ok but other than getting more build coverage, is there any point in
>building this code on a generic platform?

The driver can be used with distro packages, though it won’t be optimized for performance.