Now that the IPv4 encap stuff is out of the way, I'll be sending you
the IPv6 versions.

Here is the one to remove the unnecessary extra space reserved for
IPCOMP.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Yoshifuji Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@redhat.com>