[fpc-pascal] avx2 32-byte alignment

[Marco van de Voort]

In our previous episode, Jonas Maebe said:
> > I wonder if it is possible to align constants used for shuffling
> > (array[0..31] of byte typically) on 32-byte borders,
> 
> http://www.freepascal.org/docs-html/3.0.0/prog/progsu9.html

I skipped over it looking for a $dataalign. $codealign for dataalignement, a
bit of a misnomer.