selinux/nlmsg: add XFRM_MSG_GETSPDINFO

This command is missing.

Fixes: ecfd6b183780 ("[XFRM]: Export SPD info")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed