msm: camera2: cpp: Add compat ioctl support for IOMMU attach/detach

Add compat ioctl support for IOMMU attach and detach ioctls so that
these ioctls are supported for 64bit compatibility mode as well.

Change-Id: I22d9e1037e1a6ca56320b0e75270a222b7f73524
Signed-off-by: Seemanta Dutta <seemanta@codeaurora.org>