msm: camera: sensor: Add compat ioctl support in sensor drivers

Add compat ioctl support in actuator and flash drivers so that
32 bit userpsace ioctl calls are directed to proper ioctl handler
functions in those drivers.

Change-Id: Ia987900078fa2d36212dc9df63d553c4a44bd3da
Signed-off-by: Rajesh Bondugula <rajeshb@codeaurora.org>