drm/panthor: Correct the order of arguments passed to gem_sync

drm/panthor: Correct the order of arguments passed to gem_sync

This commit corrects the order of arguments passed to panthor_gem_sync()
function, called when the SYNC_WAIT condition has to be evaluated for a
blocked GPU queue.

Fixes: cd2c9c3015e6 ("drm/panthor: Add flag to map GEM object Write-Back Cacheable")
Signed-off-by: Akash Goel <akash.goel@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260305110723.2871733-1-akash.goel@arm.com
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>