qede: uninitialized variable in qede_start_xmit()

"data_split" was never set to false.  It's just uninitialized.

Fixes: 2950219d ('qede: Add basic network device support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>