arm64: imx8mx: vpu: integrate vsi 20210409 release

arm64: imx8mx: vpu: integrate vsi 20210409 release

- M865SW-729: VSI V4L2 Engineer release package 20210409
  M865SW-725: [VPU/V4l2] utest met error when handle some hevc streams like these, 10bits->8bits->10bits bit-depth changing
  M865SW-727: [VPU/V4L2] common: potential risk in code
  M865SW-658: [VPU/V4L2] encoder: support resolution change stream transcoding.
  M865SW-696: [VPU/V4L2] VC8000E： Flush encoder then get V4L2_EVENT_CODEC_ERROR event
  M865SW-697: [VPU/V4L2] encoder: the bitrate of encoding vp8 is not accurate

Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>
(cherry picked from commit 9d01ea827a624280ada828f68fc1a12036ff1812)