drm/ttm: Put BO in its memory manager's lru list

After we move BO to a new memory region, we should put it to
the new memory manager's lru list regardless we unlock the resv or not.

Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211110043149.57554-1-xinhui.pan@amd.com


Signed-off-by: Christian König <christian.koenig@amd.com>