ENC: add BRC frame update kernel for AVC RC logic
ENC: add BRC frame update kernel for AVC RC logic

Signed-off-by: Pengfei Qu <3770d20c463a9a2048391f18839a717424bdb1b3@intel.com>
Reviewed-by: Sean V Kelley <2e220d3765e3e059981b3c8d241463f952b3ee5f@posteo.de>

01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver