staging:olpc_dcon:olpc_dcon_xo_1.c Fix typo in staging:olpc_dcon

The below patch fixes a typo I found while reading.

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>