[NET]: Use NIP6_FMT in kernel.h

There are errors and inconsistency in the display of NIP6 strings.
	ie: net/ipv6/ip6_flowlabel.c

There are errors and inconsistency in the display of NIPQUAD strings too.
	ie: net/netfilter/nf_conntrack_ftp.c

This patch:
	adds NIP6_FMT to kernel.h
	changes all code to use NIP6_FMT
	fixes net/ipv6/ip6_flowlabel.c
	adds NIPQUAD_FMT to kernel.h
	fixes net/netfilter/nf_conntrack_ftp.c
	changes a few uses of "%u.%u.%u.%u" to NIPQUAD_FMT for symmetry to NIP6_FMT

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 12e4fb7..53d6c7b 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -494,8 +494,7 @@
 				       char *name1, char *name2)
 {
 	if (!ipv6_addr_any(addr))
-		audit_log_format(ab, " %s=%04x:%04x:%04x:%04x:%04x:"
-				 "%04x:%04x:%04x", name1, NIP6(*addr));
+		audit_log_format(ab, " %s=" NIP6_FMT, name1, NIP6(*addr));
 	if (port)
 		audit_log_format(ab, " %s=%d", name2, ntohs(port));
 }
@@ -504,7 +503,7 @@
 				       __be16 port, char *name1, char *name2)
 {
 	if (addr)
-		audit_log_format(ab, " %s=%d.%d.%d.%d", name1, NIPQUAD(addr));
+		audit_log_format(ab, " %s=" NIPQUAD_FMT, name1, NIPQUAD(addr));
 	if (port)
 		audit_log_format(ab, " %s=%d", name2, ntohs(port));
 }