power: bcl: Do BCL core mitigation via KTM interface

This patch will do BCL core mitigation via KTM device
manager interface. This will reduce core mitigation
contention between KTM and BCL.

Change-Id: Ie4bb85c1ea91120d1de4618f214bdc24724e5e7a
Signed-off-by: Shiju Mathew <shijum@codeaurora.org>