msm: camera: smmu: Add map and unmap monitor

Add map and unmap events in monitor array for each
context bank and dump the last set of events whenever
some smmu related issue happens.

CRs-Fixed: 2538876
Change-Id: I18941e9a64ebd6828419e13471938bb32438122c
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>