sepolicy: move to msm8960-common

Change-Id: Ic2608d3949c9415a9c55dd22b6de8f55d6ce3f94
Revert "jf: set sepolicy permissive for now"

This reverts commit 669bcea8a54fcf7c96f8ee89ba2eab24074b10c5.

Change-Id: I991d1eb7c62f8beca2c1340de70a983a3f0db6c3