ANDROID: restrict access to perf events

Add:
CONFIG_SECURITY_PERF_EVENTS_RESTRICT=y

to android-base.cfg

The kernel.perf_event_paranoid sysctl is set to 3 by default.
No unprivileged use of the perf_event_open syscall will be
permitted unless it is changed.

Bug: 29054680
Change-Id: Ie7512259150e146d8e382dc64d40e8faaa438917