[rocm-libraries] ROCm/rocm-libraries#10638 (commit 7b259db)

docs(hipcub, hipthreads, rocprim, rocthrust, ck, rpp) added
 rocm theme info to the conf.py files (#10638)

## Motivation

New buttons are needed at the top of the component documentation landing
pages. This PR adds them to hipcub, hipthreads, rocthrust, rocprim, ck,
and rpp

JIRA ID : AIROCDOC-4239

Co-authored-by: {spolifroni-amd} <{sandra.polifroni@amd.com}>