HID: hid-lcpower: fix key mapping

I already got some feedback for this module, telling me red and blue keys are
exchanged.  I checked it, and they are right. Due to my incorrect userspace
settings I missed this during my testing.

Signed-off-by: Chris Schlund <chrisschlund@gmx.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>