gma500: ioctl first pass

Go through the remaining ioctls and check they make sense

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --cc drivers/staging/gma500/psb_drv.c
Simple merge

diff --cc drivers/staging/gma500/psb_gtt.c
Simple merge

diff --cc drivers/staging/gma500/psb_gtt.h
Simple merge