Intel already has a deal with Rockchip. This doesn't make much sense.
If it would be possible it would make sense under the perspective that Rockchip reigns supreme only for tablet SoCs, while MediaTek's core business is rather in the smartphone direction. No idea if MTK has come close to reaching its goals for this fiscal year but their projection was for 300Mio smartphone SoCs and 40Mio tablet SoCs I think? No idea about the latter but the first will be definitely way over 200Mio from what I'm hearing. And that would sizeable for Intel; tablets aren't where the real volume and money is. We all know that.