power: bcl: Interface with the new BCL peripheral driver

Add support for battery current limit module to use
the BCL framework. This makes the battery current limit
module independent of the underlying hardware changes.

Change-Id: Ib0dab6c332846f71a2c8ce9fc5c6e88ae15d947c
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>