msm: camera: isp: Add support for BUS IRQ controller

Initialize BUS IRQ controller. Remove hard code subscribe of IRQ mask
and add independent subscribe/unsubscribe for each WM/composite_group.

Change-Id: I02983ae9811c33ec353b2d1caecbd5c84f7177ae
Signed-off-by: Harsh Shah <harshs@codeaurora.org>
Signed-off-by: Soundrapandian Jeyaprakash <jsoundra@codeaurora.org>
9 files changed