[NETFILTER]: nf_conntrack: fix NF_CONNTRACK_PROC_COMPAT dependency

NF_CONNTRACK_PROC_COMPAT depends on NF_CONNTRACK_IPV4, not NF_CONNTRACK.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index bc298a3f..06fec80 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -21,7 +21,7 @@
 
 config NF_CONNTRACK_PROC_COMPAT
 	bool "proc/sysctl compatibility with old connection tracking"
-	depends on NF_CONNTRACK
+	depends on NF_CONNTRACK_IPV4
 	default y
 	help
 	  This option enables /proc and sysctl compatibility with the old