CHROMIUM: load selinux policy

When compiled with the selinux use flag, attempt to
load selinux policy, but log and continue
if the policy cannot be loaded and enforce=false.

BUG=b:25408463
TEST=boots (with no selinux policy)

Reviewed-on: https://chromium-review.googlesource.com/324604
Change-Id: I1328bcb73f57923305fdf82312a4ebd2d05c6f14
3 files changed