Slimify

Change-Id: I19256f4e62f9ad61235ecede20a7d84791b7033c
init: set baseband version by grep'ing the modem partition

* this is ugly...w/e

Change-Id: I941d3cfdd5f163fb79b8233a7196f448111c9329
g3: add bump script

* auto bumps boot and recovery images
* to enable for your variant, set TARGET_REQUIRES_BUMP in BoardConfig

Change-Id: Ib04dda56564c8b89f9c24a75ef5dffc43073b063