xtables-addons: #15516 Fix compile under linux 3.14

Add compatibility inline function.

Signed-off-by: Jan Kardell <jan.kardell@telliq.com>

SVN-Revision: 40613

package/network/utils/xtables-addons/patches/004-fix-kernel-3.14.patch

+--- a/extensions/compat_xtables.h
++++ b/extensions/compat_xtables.h
+@@ -89,4 +89,11 @@ static inline void proc_net_remove(struc
+ }
+ #endif
+ 
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0)
++static inline u32 net_random(void)
++{
++	return prandom_u32();
++}
++#endif
++
+ #endif /* _XTABLES_COMPAT_H */