iris: fix the order of src and dst for fence memcpy

This fixes random failures with "deqp-egl --deqp-case=*multithread*":
   iris: Failed to submit batchbuffer: No such file or directory

Fixes: 6b1a56b908e ("iris: Drop stale syncobj references in fence_server_sync")
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7289>
1 file changed