remove p51xx devices

Change-Id: I236db6d96554f65a4a584f88ae31cab5da502601
push to 2.4 weekly

Change-Id: Ic1590a7d0982a3df01395fd58cda0a06e62fda3b
Merge branch 'kk4.4' of https://github.com/SlimRoms/vendor_slim into kk4.4