frr: add package

in place replacement for quagga

Signed-off-by: Lucian Cristian <lucian.cristian@gmail.com>

net/frr/patches/099-redefine_ethhdr.patch

@@ -0,0 +1,17 @@
+--- a/lib/prefix.h	2017-12-03 22:02:41.642317377 +0200
++++ b/lib/prefix.h	2017-12-03 22:03:30.011320262 +0200
+@@ -24,12 +24,12 @@
+ 
+ #ifdef SUNOS_5
+ #include <sys/ethernet.h>
+-#else
++/*#else
+ #ifdef GNU_LINUX
+ #include <net/ethernet.h>
+ #else
+ #include <netinet/if_ether.h>
+-#endif
++#endif*/
+ #endif
+ #include "sockunion.h"
+ #include "ipaddr.h"