netfilter: rename nf_SYNPROXY.h to nf_synproxy.h

Uppercase is a reminiscence from the iptables infrastructure, rename
this header before this is included in stable kernels.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

include/uapi/linux/netfilter/xt_SYNPROXY.h

@@ -2,7 +2,7 @@
 #ifndef _XT_SYNPROXY_H
 #define _XT_SYNPROXY_H
 
-#include <linux/netfilter/nf_SYNPROXY.h>
+#include <linux/netfilter/nf_synproxy.h>
 
 #define XT_SYNPROXY_OPT_MSS		NF_SYNPROXY_OPT_MSS
 #define XT_SYNPROXY_OPT_WSCALE		NF_SYNPROXY_OPT_WSCALE

net/netfilter/nf_synproxy_core.c

@@ -11,7 +11,7 @@
 #include <linux/proc_fs.h>
 
 #include <linux/netfilter_ipv6.h>
-#include <linux/netfilter/nf_SYNPROXY.h>
+#include <linux/netfilter/nf_synproxy.h>
 
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_ecache.h>