> As long as Apple doesn't start selling A* chips to Samsung or other Android OEMs Qualcomm isn't going to worry
Even if Apple did sell their chips to other parties, Qualcomm will be still collecting its sweet patent royalty from both parties, so it couldn't care less.
The patent royalties are fairly small compared to selling a full chip. They would still be feeling the pinch.
Of course even if Apple did start selling those chips (which they won't) they would charge an arm and a leg for them, because they could. They would only be used in the top of the line flagship phones. Apple has shown zero interest in competing with the bargain basement hardware producers.
Even if Apple did sell their chips to other parties, Qualcomm will be still collecting its sweet patent royalty from both parties, so it couldn't care less.