[PATCH] elf: Add la_objsearch2 with lmid parameter for rtld-audit [BZ #34093]

[Florian Weimer]

* Frederic Berat:

> Based on Ben Woodard comment, I could also extend la_obsearch instead
> of creating the new interface.  I went for a new interface because I
> thought it was better/simpler, but I don't have a strong opinion about
> it.  Any feedback on that?

What would we put into <link.h>?  We can only have one prototype, so
this is going to have a source compatibility impact.  Introducing
la_objsearch2 avoids that.

Thanks,
Florian