Revert "moving selinux enable.sh to posttrans with a conditional"

This reverts commit 62b5a1008092ce0c1e33cc31e488ceeb7f5f326b.
Revert "moving selinux enable.sh to posttrans with a conditional"

This reverts commit eaa53bba168c1085acac9df089797da6f1fa0c64.