msm: camera: smmu: Add functions to map & unmap qdss memory

As part of the icp memory ctx qdss physical address needs to be
mapped by smmu and the mapped virtual address to be passed to FW.
Updated debugfs to allow users to either choose qdss or debug
queue.

For debug queue mode:
adb shell echo 1 > /sys/kernel/debug/camera_icp/a5_debug_type

QDSS mode:
adb shell echo 2 > /sys/kernel/debug/camera_icp/a5_debug_type

Change-Id: Ibc96d60c68012036484d3cc734691f71b698318e
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>
Signed-off-by: Vishalsingh Hajeri <vhajeri@codeaurora.org>
Signed-off-by: Abhilash Kumar <krabhi@codeaurora.org>