net: add moduleparam.h for users of module_param/MODULE_PARM_DESC

These files were getting access to these two via the implicit
presence of module.h everywhere.  They aren't modules, so they
don't need the full module.h inclusion though.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index cd1e8e0..aaaac44 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -20,6 +20,7 @@
 #include <linux/percpu.h>
 #include <linux/kernel.h>
 #include <linux/jhash.h>
+#include <linux/moduleparam.h>
 #include <net/net_namespace.h>
 
 #include <net/netfilter/nf_conntrack.h>