Bluetooth: Fix access to the STK generation methods matrix

The major index of the table is actually the remote I/O capabilities, not
the local ones. As a result, devices with different I/O capabilities
could have used wrong or even unsupported generation methods.
Signed-off-by: NIdo Yariv <ido@wizery.com>
CC: Brian Gix <bgix@codeaurora.org>
Acked-by: NVinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi>

net/bluetooth/smp.c

@@ -310,7 +310,7 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
 			remote_io > SMP_IO_KEYBOARD_DISPLAY)
 		method = JUST_WORKS;
 	else
-		method = gen_method[local_io][remote_io];
+		method = gen_method[remote_io][local_io];
 
 	/* If not bonding, don't ask user to confirm a Zero TK */
 	if (!(auth & SMP_AUTH_BONDING) && method == JUST_CFM)