v4l2slh264dec: Fix slice header bit size calculation
The emulation bytes need to be removed as bytes, not bit. This fixes decoding issues with files that have emulation bytes with the Cedrus driver.
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The migration is almost done, at least the rest should happen in the background. There are still a few technical difference between the old cluster and the new ones, and they are summarized in this issue. Please pay attention to the TL:DR at the end of the comment.
The emulation bytes need to be removed as bytes, not bit. This fixes decoding issues with files that have emulation bytes with the Cedrus driver.