1. Fix the error buffer count for v4l2 when using pingpong buffer.
2. Add readable flag for pingpong buffers exchange to avoid overproduction.
Signed-off-by: Kevin.xie <kevin.xie@starfivetech.com>
1.Create starfive package, and move v4l2test into it.
2.Sync the latest v4l2test package from JH7100.
Signed-off-by: mason.huo <mason.huo@starfivetech.com>
(cherry-pick commit 87583e4004ba7ceefa317d939ea8004f38eb9570 from jh7110-mm-devel branch)