drm/i915/debugfs: register LPSP capability on all platforms

The debugfs file shows it's not capable, don't duplicate the info.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/939453050a5a5175a12a08f16542c1b40bd726dc.1630327990.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_display_debugfs.c

@@ -2485,14 +2485,11 @@ int intel_connector_debugfs_add(struct drm_connector *connector)
 				    connector, &i915_dsc_bpp_fops);
 	}
 
-	/* Legacy panels doesn't lpsp on any platform */
-	if ((DISPLAY_VER(dev_priv) >= 9 || IS_HASWELL(dev_priv) ||
-	     IS_BROADWELL(dev_priv)) &&
-	     (connector->connector_type == DRM_MODE_CONNECTOR_DSI ||
-	     connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
-	     connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
-	     connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
-	     connector->connector_type == DRM_MODE_CONNECTOR_HDMIB))
+	if (connector->connector_type == DRM_MODE_CONNECTOR_DSI ||
+	    connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+	    connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+	    connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
+	    connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
 		debugfs_create_file("i915_lpsp_capability", 0444, root,
 				    connector, &i915_lpsp_capability_fops);