msm: camera: isp: Fix ioctl value issue

Due to rebasing issues, two ioctls end up using
same ioctl numbers. Modify and assign proper
incremenetal ioctl number to new ioctl.

Change-Id: Icb52c7c8940770980d33a5d8a3dd681461bdd988
Signed-off-by: Sagar Gore <sgore@codeaurora.org>