VPP: Flush batch buffer to assure that previous GPU operation is submitted
VPP: Flush batch buffer to assure that previous GPU operation is submitted

Tested-by: Zaverel <d908be029aa1d9fa57889bbde414593df75eefd9@free.fr>
Signed-off-by: Zhao Yakui <21bae65ecea50a19bd9d0fef489914760189fd5b@intel.com>

gbeauchesne/libva-intel-driver,gbeauchesne/libva-intel-driver,gbeauchesne/libva-intel-driver,gbeauchesne/libva-intel-driver,gbeauchesne/libva-intel-driver