linux-phytec-fsl

vxlan: fix a typo.

Use eXtensible and not eXtensiable in the comment on top.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>