[media] rc-core: fix some leftovers from the renaming patches

Fix some minor comments etc which are leftover from the old naming scheme.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/rc/rc-main.c

@@ -1,4 +1,4 @@
-/* rc-core.c - handle IR scancode->keycode tables
+/* rc-main.c - Remote Controller core module
  *
  * Copyright (C) 2009-2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
  *