and use it in icmp_rate_limit01.c.

This fixes error on toolchains with very old kernel headers, e.g.
Buildroot sourcery-arm:

icmp_rate_limit01.c:82:3: error: 'IFA_F_NOPREFIXROUTE' undeclared (first use in this function)
   IFA_F_NOPREFIXROUTE);

Fixed because IFA_F_NOPREFIXROUTE was added in 3.14 and the oldest
system we still support is Cent0S 7 with 3.10 kernel.

NOTE: Cent0S 7 is obviously heavily patched thus it contains
IFA_F_NOPREFIXROUTE and therefore CI build didn't catch this error.

Signed-off-by: Petr Vorel <redacted>
---
 include/lapi/if_addr.h            | 3 +++
 testcases/cve/icmp_rate_limit01.c | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/lapi/if_addr.h b/include/lapi/if_addr.h
index 4e50a0a4e..0f7e44784 100644
--- a/include/lapi/if_addr.h
+++ b/include/lapi/if_addr.h

@@ -12,5 +12,8 @@
 # define IFA_FLAGS 8
 #endif
 
+#ifndef IFA_F_NOPREFIXROUTE
+# define IFA_F_NOPREFIXROUTE	0x200
+#endif
 
 #endif /* LAPI_IF_ADDR_H__ */

diff --git a/testcases/cve/icmp_rate_limit01.c b/testcases/cve/icmp_rate_limit01.c
index b3a237b30..3ada32675 100644
--- a/testcases/cve/icmp_rate_limit01.c
+++ b/testcases/cve/icmp_rate_limit01.c

@@ -27,11 +27,12 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
-#include <linux/if_addr.h>
 #include <linux/errqueue.h>
 
 #include <sched.h>
 #include <limits.h>
+
+#include "lapi/if_addr.h"
 #include "tst_test.h"
 #include "tst_netdevice.h"
 

-- 
2.33.0

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