[DECNET] Fix to multiple tables routing

[Steven Whitehouse <steve@chygwyn.com>]

Here is a fix to Patrick McHardy's increase number of routing tables patch
for DECnet. I did just test this and it appears to be working fine with
this patch.

Cc: Patrick McHardy <kaber@trash.net>
Cc: Patrick Caulfield <patrick@tykepenguin.com>
Signed-off-by: Steven Whitehouse <steve@chygwyn.com>

diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 878312f..c8d9411 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -116,6 +116,7 @@ static struct nla_policy dn_fib_rule_pol
 	[FRA_SRC]	= { .type = NLA_U16 },
 	[FRA_DST]	= { .type = NLA_U16 },
 	[FRA_FWMARK]	= { .type = NLA_U32 },
+	[FRA_TABLE]     = { .type = NLA_U32 },
 };
 
 static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)