sunxi: HYP/non-sec: configure CNTFRQ on all CPUs

CNTFRQ needs to be properly configured on all CPUs. Otherwise,
virtual machines hoping to find valuable information on secondary
CPUs will be disapointed...

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>