[SYSCTL]: Fix warning for token-ring from sysctl checker

As seen when booting ppc64_defconfig:

sysctl table check failed: /net/token-ring .3.14 procname does not match binary path procname
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

kernel/sysctl_check.c

@@ -738,7 +738,7 @@ static struct trans_ctl_table trans_net_table[] = {
 	{ NET_ROSE,		"rose",		trans_net_rose_table },
 	{ NET_IPV6,		"ipv6",		trans_net_ipv6_table },
 	{ NET_X25,		"x25",		trans_net_x25_table },
-	{ NET_TR,		"tr",		trans_net_tr_table },
+	{ NET_TR,		"token-ring",	trans_net_tr_table },
 	{ NET_DECNET,		"decnet",	trans_net_decnet_table },
 	/*  NET_ECONET not used */
 	{ NET_SCTP,		"sctp",		trans_net_sctp_table },