net: add vxlan description

Add a description to the vxlan module, helping save the world
from the minions of destruction and confusion.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/vxlan.c

@@ -2775,4 +2775,5 @@ module_exit(vxlan_cleanup_module);
 MODULE_LICENSE("GPL");
 MODULE_VERSION(VXLAN_VERSION);
 MODULE_AUTHOR("Stephen Hemminger <stephen@networkplumber.org>");
+MODULE_DESCRIPTION("Driver for VXLAN encapsulated traffic");
 MODULE_ALIAS_RTNL_LINK("vxlan");