[PPC] add dcbzl opcode for PPC970

[Ben Elliston]

Alan Modra <amodra@bigpond.net.au> writes:

> > +{ "dcbzl",   XCMPL(31,1014,1), XRT_MASK,POWER4,            { RA, RB } },
> 
> I don't particularly like the use of XCMPL here, which is supposed to be
> "An X form comparison instruction".  I suppose you could change the name
> of the XCMPL macro and fix the comment.  Perhaps XOPL "An X form 
> instruction with the L bit specified".  OK with that change.

Yep, agreed.

Thanks, Ben