drm/amd: smu7: downgrade voltage error to info

The message `Voltage value looks like a Leakage ID but it's not patched`
shows up as an error on Dell Precision 3540.  This doesn't cause functional
problems and should be downgraded to info.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1162


Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>