drm/nouveau/clk: allow users to enable auto mode when loading driver
drm/nouveau/clk: allow users to enable auto mode when loading driver

This patch adds one option for the boot config strings "NvClkMode*", so
that we can enable the "auto" mode when loading module.

Signed-off-by: Vince Hsu <5ea228a5cf8d16f5020fb76be180e36823a0ff47@nvidia.com>
Signed-off-by: Ben Skeggs <d9f27fb07c1e9f131223ad827fa5179f3846c30b@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs