msm: camera2: cpp: Add IOMMU Attach and Detach IOCTL for cpp

Add new IOCTL for IOMMU attach and detach for cpp, So it
can be called in stream ON/OFF to avoid multiple attach
in secure camera use case

Change-Id: I94427a9dab84e52d6c36820fe6061734edd41ea9
Signed-off-by: Azam Sadiq Pasha Kapatrala Syed <akapatra@codeaurora.org>
Signed-off-by: Lakshmi Narayana Kalavala <lkalaval@codeaurora.org>