drm/amd/pm: Correct comment above power2_cap attributes

Previously only Van Gogh supported this, but that is not true
anymore since:
commit 12c958d ("drm/amd/pm: Expose ppt1 limit for gc_v9_5_0")

Update the comment to reflect that.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Timur Kristóf

drivers/gpu/drm/amd/pm/amdgpu_pm.c

@@ -3878,7 +3878,7 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
 	     attr == &sensor_dev_attr_temp3_emergency.dev_attr.attr))
 		return 0;
 
-	/* only Vangogh has fast PPT limit and power labels */
+	/* only a few GPUs have fast PPT limit and power labels */
 	if ((attr == &sensor_dev_attr_power2_cap_max.dev_attr.attr ||
 	     attr == &sensor_dev_attr_power2_cap_min.dev_attr.attr ||
 	     attr == &sensor_dev_attr_power2_cap.dev_attr.attr ||