Enable the build files for Android and libselinux.
This requires that the external/libselinux project
has been removed from the build.
Note: That an issue, documented in the
libselinux/Android.bp, between building sefcontext_compile
and libselinux resulted in needing an Android.mk and
Android.bp to reside side-by-side.
Test: aosp_angler builds and boots
Bug: 31910164
Change-Id: Ia906860846732236ae7043b00fa70e65ae7bbc45
Signed-off-by: William Roberts <william.c.roberts@intel.com>
