wrap: add ioctls for cache synchronization
IOCTL_KGSL_GPUOBJ_SYNC
IOCTL_KGSL_GPUMEM_SYNC_CACHE
IOCTL_KGSL_GPUMEM_SYNC_CACHE_BULK
Why there are three of them
IOCTL_KGSL_GPUOBJ_SYNC
IOCTL_KGSL_GPUMEM_SYNC_CACHE
IOCTL_KGSL_GPUMEM_SYNC_CACHE_BULK
Why there are three of them