msm: mdss: compat ioctl support for sspp features

Source surface post processing(sspp) pipes support post processing
features in thulium. If user-space client is 32 bit and kernel is 64
bit compat ioctl path will be taken. Change updates the driver in
compat path to support 32 bit clients for sspp features.

Change-Id: Iaa07f40520f115348ac3af4c9eeb5690ed78e2dd
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>