Add auditd

Change-Id: I54717edbeb9677e53bdd01e6519edd30c387bfe8
Re-applied AX to a clean CM base
Merge remote-tracking branch 'ax/aosp-plus_4.3' into HEAD

Conflicts:
	core/Makefile
	envsetup.sh

	modified:   core/dumpvar.mk
	modified:   core/product_config.mk
	modified:   target/product/embedded.mk
	modified:   tools/buildinfo.sh
	modified:   core/dumpvar.mk
	modified:   tools/buildinfo.sh