gm20b clock registers do not exist in gp10b. Skip setting the clock
HAL to gm20b variants.
Change-Id: Ieaa9a04a8afbe772864d947d968e3e1c7f9968e9
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/760854
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit