msm: camera: reqmgr: Add EOF trigger notification

Add method in ISP to notify SOF/EOF that is subscribed by camera
modules to CRM, CRM will send apply command to modules as the
subscribe mask.

CRs-fixed: 2096454
Change-Id: I6ad7d77f091386d3be91c670da75e1cd15e41ecd
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>
Signed-off-by: Junzhe Zou <jnzhezou@codeaurora.org>