quoted

But what about the out-of-tree boards that Andrew mentioned? We need to ensure we don't break them, right?

No. What's not on the list, doesn't exist

How i worded it was:

We care less about out of tree boards, but we also don't needlessly
break them.

I guess if Qualcomm wants to break all its customers boards, that is
up to Qualcomm. But we can also make it easier for Qualcomm customers
to get off the vendor crap kernel and to mainline if we at least give
them an easier migration path.

     Andrew