media: iris: Send dummy buffer address for all codecs during drain

media: iris: Send dummy buffer address for all codecs during drain

Firmware can handle a dummy address for buffers with the EOS flag. To
ensure consistent behavior across all codecs, update the drain
command to always send a dummy buffer address.

This makes the drain handling uniform and avoids any codec specific
assumptions.

Fixes: 478c4478610d ("media: iris: Add codec specific check for VP9 decoder drain handling")
Cc: stable@vger.kernel.org
Reviewed-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Tested-by: Vikash Garodia <quic_vgarodia@quicinc.com> # X1E80100
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-HDK
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # x1e80100-crd
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>