[NET] DOC: Update networking/multiqueue.txt with correct information.

Updated the multiqueue.txt document to call out the correct kernel
options to select to enable multiqueue.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed