1. Use cmd MPP_SET_DISABLE_THREAD to disable thread, cmd set must be
after mpp_create before mpp_init.
2. When thread disabled put_packet & get_frame MUST not be used.
3. Separate normal flow and no thread flow.
Change-Id: Icf189d312ff39aacf6ca0afe7f345ff4d1cbfb67
Signed-off-by: sayon.chen <sayon.chen@rock-chips.com>