CIK support in amdgpu is currently experimental, and the upstream
maintainers do not recommend enabling it. Disabling CIK support
in amdgpu will result in falling back to the radeon driver, which
also supports this hardware.

BugLink: http://bugs.launchpad.net/bugs/1510405Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>