drm/panthor: Fix GPU_COHERENCY_ACE[_LITE] definitions

drm/panthor: Fix GPU_COHERENCY_ACE[_LITE] definitions

GPU_COHERENCY_ACE and GPU_COHERENCY_ACE_LITE definitions have been
swapped.

Changes in v2:
- New patch

Changes in v3:
- Add Steve's R-b

Reported-by: Liviu Dudau <liviu.dudau@arm.com>
Fixes: 546b366600ef ("drm/panthor: Add GPU register definitions")
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://lore.kernel.org/r/20250404080933.2912674-2-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>