Cronus

Change-Id: Id1e2cb29210f4eb70f31705cb9d0ac894aaa85ac
Revert "unpackbootimg: add a target specifically for unpackbootimg."

This reverts commit 19e8214ad810444555d7646a19971d4131bec432.

Conflicts:

	core/Makefile

Change-Id: I56e12a3d55964a02b8bcff723a9e443bdf178b5e
Revert "add unpackbootimg to otatools"

This reverts commit d2610effaf7674789389934ba59fd03aa278c5ea.