media: venus: vdec: Fix non reliable setting of LAST flag

stable inclusion
from stable-v5.10.180
commit a30297bff881dd13bd74cfa4c93034e47396011e
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8DDFN

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a30297bff881dd13bd74cfa4c93034e47396011e



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[ Upstream commit acf8a57d ]

In real use of dynamic-resolution-change it is observed that the
LAST buffer flag (which marks the last decoded buffer with the
resolution before the resolution-change event) is not reliably set.

Fix this by set the LAST buffer flag on next queued capture buffer
after the resolution-change event.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Stable-dep-of: 50248ad9 ("media: venus: dec: Fix handling of the start cmd")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>