fbdev: Fix contact info in fb_cmdline.c

Fix Daniel's email address. No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230209135509.7786-2-tzimmermann@suse.de

drivers/video/fbdev/core/fb_cmdline.c

@@ -12,7 +12,7 @@
  * for more details.
  *
  * Authors:
- *    Vetter <danie.vetter@ffwll.ch>
+ *    Daniel Vetter <daniel.vetter@ffwll.ch>
  */
 #include <linux/init.h>
 #include <linux/fb.h>