First, did that happen because of any swelling or displacement of the airbag itself? Because that would be a real concern and should be investigated (carefully!! with key off and battery negative disconnected for at least 90 seconds). Is there an SRS light?
Sorry, I can't really suggest a fix just from the pictures. The FSM does say NEVER to fix the dash around the airbag, always replace. Page RS-27 below:
I did not, the previous owner said his dog pulled on the edge and it ripped. There is not an SRS light. So I should replace the entire dash piece? Because it is all one huge piece.