ANDROID: arm: Enable dynamic sched_domain flag setting

The patch lets the arch_topology driver take over setting of
sched_domain flags that should be detected dynamically based on the
actual system topology.

cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Change-Id: I5bc17383c5666e8ff35d5109016dec98474997ce
Signed-off-by: Chris Redpath <chris.redpath@arm.com>