Add MT8192 H264 venc driver and support H264 4K encoding on MT8192.

Signed-off-by: Irui Wang <redacted>
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This patch dependents on
"dt-bindings: media: mtk-vcodec: Separating mtk vcodec encoder node" [1]

We need "core_id" variable in device private data to indicate
current encoder driver.
Please also accept this patch together with [1].

http://lists.infradead.org/pipermail/linux-mediatek/2021-March/022432.html
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Change since v1:
- remove encoder device tree example in dt-bindings
---
Irui Wang (5):
  dt-bindings: media: mtk-vcodec: Add dma-ranges property
  media: mtk-vcodec: Support 4GB~8GB range iova space for venc
  dt-bindings: media: mtk-vcodec: Add binding for MT8192 VENC
  media: mtk-vcodec: Add MT8192 H264 venc driver
  media: mtk-vcodec: Support H264 4K encoding on MT8192

 .../bindings/media/mediatek-vcodec.txt        |  3 +
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  1 +
 .../platform/mtk-vcodec/mtk_vcodec_enc.c      | 58 ++++++++++++++-----
 .../platform/mtk-vcodec/mtk_vcodec_enc_drv.c  | 18 ++++++
 .../platform/mtk-vcodec/venc/venc_h264_if.c   |  4 ++
 5 files changed, 69 insertions(+), 15 deletions(-)

-- 
2.18.0
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