drm/amd: Allow printing VanGogh OD SCLK levels without setting dpm to manual

drm/amd: Allow printing VanGogh OD SCLK levels without setting dpm to manual

[ Upstream commit 2d1ec1e955414e8e8358178011c35afca1a1c0b1 ]

Several other ASICs allow printing OD SCLK levels without setting DPM
control to manual.  When OD is disabled it will show the range the
hardware supports. When OD is enabled it will show what values have
been programmed. Adjust VanGogh to work the same.

Cc: Pierre-Loup A. Griffais <pgriffais@valvesoftware.com>
Reported-by: Vicki Pfau <vi@endrift.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20250609031227.479079-1-superm1@kernel.org
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>