Revert "Target Boosted-4.7 for kernel"

This reverts commit e9988b91e3a8002bdf7c8e83c0682329a814e776.

Change-Id: I6728e78948a203668b6f7081f9bb6285cc96f1a2
Merge "Revert "Target Boosted-4.7 for kernel"" into illusion-4.4