drm/panel: lvds: Fix driver description heading

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f80a5dd350b057d925d36f5857b5724c88da50df.1516636902.git.baruch@tkos.co.il

drivers/gpu/drm/panel/panel-lvds.c

 /*
- * rcar_du_crtc.c  --  R-Car Display Unit CRTCs
+ * Generic LVDS panel driver
  *
  * Copyright (C) 2016 Laurent Pinchart
  * Copyright (C) 2016 Renesas Electronics Corporation