This patch fixes comments for tunnel filters and flow director flows.
e.g. states fields which are in big endian.
Fixes: 7b1312891b69 ("ethdev: add IP in GRE tunnel")
Fixes: d69be32d4d78 ("ethdev: structures to add or delete flow director")
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>