msm: camera: update stats irq handling for isp47

Add stats handling for BF stats and BF early done stats.
also a mapping between composite irq mask and irq status.

On composite handling, without input the composite index,
run time stats update can not update comp mask properly.
add the input to config composite mask even for seperate stats.

Change-Id: Ia45372bb55b12bf366c56dc315b168e7a6859531
Signed-off-by: Peter Liu <pingchie@codeaurora.org>
Signed-off-by: Sagar Gore <sgore@codeaurora.org>
Signed-off-by: Nagesh Subba Reddy <nageshsreddy@codeaurora.org>