Fixes more red for xworlds keymaps

A temporary fix for keymaps.h, the logic needs rewritten

Change-Id: Ic8c81a5f01620ffc409cf6220b2916c0ec428dbe
Reviewed-on: http://gerrit.rockbox.org/1082
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
Fix for DX50 xworld keymaps.h

Change-Id: I6bf564cf009d935ebb1d7fb77ccb2eab8c87d2c7
Reviewed-on: http://gerrit.rockbox.org/1083
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>