msm_fb: display: matching MDP IOCTL numbers with userspace

(cherry picked from commit 923093ce7da6ca017ebe7e40cb8d812cedbc3066)

Change-Id: Icbcedc4c809ae61af2737b9919fe03b4efa58e46
Signed-off-by: Siddhartha Agrawal <agrawals@codeaurora.org>