Do not reset init_vbv_buffer_fullness_in_bit, vbv_buffer_size_in_bit
Do not reset init_vbv_buffer_fullness_in_bit, vbv_buffer_size_in_bit

Just follow the setting from APP

BUG: VIZ-4920 This was causing achieved bitrate on BYT to
be > 100% delta from the target bitrate.

Change-Id: I2317cb56dd250e85e69f40c412ca9fc10f4693a5
Signed-off-by: Xiang, Haihao <8d677183e5993577d4fa73a419b76987913292d6@intel.com>
Tested-by: Sameer Kibey <e01ca4856f7497cb497555a6ea781db0e112693d@intel.com>

BtbN/intel-hybrid-driver,seanvk/intel-hybrid-driver,01org/intel-hybrid-driver,BtbN/intel-hybrid-driver,BtbN/intel-hybrid-driver,seanvk/intel-hybrid-driver,seanvk/intel-hybrid-driver,01org/intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,BtbN/intel-hybrid-driver,seanvk/intel-hybrid-driver,BtbN/intel-hybrid-driver,01org/intel-hybrid-driver,seanvk/intel-hybrid-driver,01org/intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,gbeauchesne/libva-intel-hybrid-driver,01org/intel-hybrid-driver