msm: camera: Handling Buffer Error notified by reg_mgr

This change provides provision to allow devices connected
to the req_mgr to receive error notifications on the given link.
ISP on receiving such notification will flag a sync failure on the
buffer corresponding to the req_id flagged by req_mgr as a
failure to userspace

Change-Id: I12d3d718595660cb3a655114112f26e64fc60046
Signed-off-by: vhajeri <vhajeri@codeaurora.org>