Fix device asserts

Conflicts:
	tools/releasetools/edify_generator.py
Revert "Load only the current product config makefile."

This reverts commit 54fa8c3ff9b1f0f1b0b9c551be864f1b7378c7fc.

Conflicts:
	core/product_config.mk

Change-Id: Ia942d826eae08429d91bbfbb6c43b1cdd78563f7

Conflicts:
	core/product_config.mk
Better handling of ramdisk during make

make clobber used to call rm -rf out/
so if out is a soft link to i.e. /tmp/out
the soft link is deleted instead the content
so i changed the makefile to rm -rf out/*

Change-Id: Id1991161617da8ec34307a30412c134e31f589b4
fix up ota_from_target_files symlink detection.
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