[PATCH v2] AArch64: Check kernel version for SVE ifuncs

[Florian Weimer]

* Adhemerval Zanella Netto:

>> Anyway, I verified this against 4.18 and 5.14 kernels, and got the
>> expected results (__memcpy_generic and __memcpy_sve).
>
> If you have check through the string tests, you might not get the 
> correct answer since it uses the ifunc-impl-list.c and this patch
> does not changes the reported functions.

No, I used GDB to resolve the addresses returned by dlsym back to a
symbol.

Thanks,
Florian