mm/cma: remove aarch64 from CMA TECH PREVIEW
Bugzilla: https://bugzilla.redhat.com/2210229
Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=52963895
Description: Remove aarch64 from CMA TECH PREVIEW
Upstream Status: RHEL-only
Tested: Did sanity boot testing on (nvidia-jetson-agx-orin-03) system.
Signed-off-by: Steve Best sbest@redhat.com