arm32 build warnings in workqueue.c

[Dave Airlie]

Not sure what changed (maybe I ended up with -Werror on recently), but
my 32-bit arm build started to fail. 6.4.0-rc7.

gcc version 13.1.1 20230519 (Red Hat Cross 13.1.1-2) (GCC)

/home/airlied/devel/kernel/dim/drm-fixes/kernel/workqueue.c: In
function ‘get_work_pwq’:
/home/airlied/devel/kernel/dim/drm-fixes/kernel/workqueue.c:713:24:
error: cast to pointer from integer of different size
[-Werror=int-to-pointer-cast]
  713 |                 return (void *)(data & WORK_STRUCT_WQ_DATA_MASK);
      |                        ^
/home/airlied/devel/kernel/dim/drm-fixes/kernel/workqueue.c: In
function ‘get_work_pool’:
/home/airlied/devel/kernel/dim/drm-fixes/kernel/workqueue.c:741:25:
error: cast to pointer from integer of different size
[-Werror=int-to-pointer-cast]
  741 |                 return ((struct pool_workqueue *)
      |                         ^
/home/airlied/devel/kernel/dim/drm-fixes/kernel/workqueue.c: In
function ‘get_work_pool_id’:
/home/airlied/devel/kernel/dim/drm-fixes/kernel/workqueue.c:763:25:
error: cast to pointer from integer of different size
[-Werror=int-to-pointer-cast]
  763 |                 return ((struct pool_workqueue *)
      |                         ^

Just a drive-by, I'll disable Werror on my 32-bit arm build for now.

Dave.