MGS-3940 gpu: imx: dpu-blit: fix dpr hang for smaller size

MGS-3940 gpu: imx: dpu-blit: fix dpr hang for smaller size

auto-trigger cause dpr hang in inital blitter implementation,
the problem is dpr repeat mode has conflict with command sequencer.

as proposed by design, blitter need do manual trigger for each process:
dpr register -> dpr run -> seeris register -> seeris trigger -> sync

frstly this patch removed dprc first frame handler from dpu blitter,
then removed dpr repeat, and enable dpr run for each blit processing.

also add sync flag to avoid the duplicated calling to dpu_be_wait.

Signed-off-by: Xianzhong <xianzhong.li@nxp.com>
(cherry picked from commit 04eb0533d5008ab20aae1e0acb9e4d8b910d82e5)