msm: camera: core: Handle request abort and signal fence CANCEL

Handle request abort cases from underlying hw mgr, hw layers.
This will handle in differentiating ERROR vs ABORT returned
from firmware in case of ICP and signal the fence accordingly.
By the time flush is issued to firmware, if a request is not
yet processed, firmware signals with Abort, which needs to be
propogated as CANCEL instead of ERROR to core context layer
so that context layer signals the fence accordingly as
ERROR or CANCEL.

CRs-Fixed: 2702771
Change-Id: I8fe6bd1c8f5cf09b99196a1caac1283032418f8c
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>