[no-relnote] fix driver branch in holodeck yaml file for 535

This commit fixes a typo in our holodeck yaml file where the 550
driver was mistakenly installed instead of 535. This commit also
updates our holodeck yaml files to move away from the deprecated
nvidiaDriver.branch field, which is deprecated starting with
holodeck v3.0.0 https://github.com/NVIDIA/holodeck/blob/d81971e401dc6ba2ca61269084919384bf702fae/api/holodeck/v1alpha1/types.go#L597.
We now use the nvidiaDriver.package.branch field for selecting
which branch of the NVIDIA driver package to install.

Signed-off-by: Christopher Desiniotis <cdesiniotis@nvidia.com>