inetaddr: enable INET_ADDR_LOCK to avoid crash when restarting keepal…

…ived

When restarting keepalived, session may lookup the deleting local address.
In this case, dpvs would crash. Put read lock on inetaddr, and no obvious
performance decrease found by the stress test.

src/inetaddr.c

@@ -31,6 +31,7 @@
 
 #define IFA
 #define RTE_LOGTYPE_IFA             RTE_LOGTYPE_USER1
+#define INET_ADDR_LOCK
 
 #define INET_ADDR_HSIZE_SHIFT       8
 #define INET_ADDR_HSIZE             (1U << INET_ADDR_HSIZE_SHIFT)