CBC_BASE register is protected on Pascal dGPUs. Skip initializing it. Bug 1799537 Change-Id: Ie4b0ac5a37c3c586d1b631ce38823d156b554e1e Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1208016 (cherry picked from commit 5f9dbca140573798bd05b5b27a7b6abe1871e90f) Reviewed-on: http://git-master/r/1210289 Reviewed-by: Automatic_Commit_Validation_User