config: android: set SELinux as default security mode

Android won't boot without SELinux enabled, so make it the default.

Link: http://lkml.kernel.org/r/20160908185934.18098-2-robh@kernel.orgSigned-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

kernel/configs/android-base.config

@@ -18,6 +18,7 @@ CONFIG_CGROUP_DEBUG=y
 CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_SCHED=y
 CONFIG_CP15_BARRIER_EMULATION=y
+CONFIG_DEFAULT_SECURITY_SELINUX=y
 CONFIG_EMBEDDED=y
 CONFIG_FB=y
 CONFIG_HIGH_RES_TIMERS=y