selinux: CM policies are now inserted last

Inclusion of the makefile is done by the build system to enforce
the wanted order

Change-Id: I86d7c6fb08b6bb1f6e0385e951a54827345aaf84

Conflicts:

	config/common.mk
	sepolicy/sepolicy.mk
selinux: Add CM-specific file_contexts

Change-Id: Ie70c59acedbb7be2f5b34a83c1d3d011f440ba05
sepolicy: f2fs: Allow fs_use_xattr

Change-Id: I458d464598777fa06751dad0aa9cfd4d903a4de1
selinux: Fix asec mounting

Change-Id: I92392f3d810dfaf8dfc35f5c9170178a651d28dc