I'm sympathetic to panpsychism, but it isn't obvious to me that intelligence should be what's behind awareness.
I've been blackout drunk before, and my brain was capable of intelligence, I got home just fine, but I had no conscious awareness. Same for a dreamless sleep and being put under for surgery.
Additionally, I the observer, can observe and be aware of intelligence which seems to indicate to me that it's something outside of what I'd call "me".