MT#55283 prevent uninitialised pointer access

This array is only conditionally partially filled, but then
unconditionally copied, so we need to zero it out.

closes #1839

Change-Id: I38662ed094aad776a68ad0c2eb947fd598bc4c57
(cherry picked from commit 860ce31f63)
(cherry picked from commit b5a9b55962)

kernel-module/xt_RTPENGINE.c

@@ -2668,7 +2668,7 @@ static int table_add_destination(struct rtpengine_table *t, struct rtpengine_des
 	struct rtpengine_target *g;
 	struct interface_stats_block *iface_stats;
 	struct stream_stats *stats;
-	struct ssrc_stats *ssrc_stats[RTPE_NUM_SSRC_TRACKING];
+	struct ssrc_stats *ssrc_stats[RTPE_NUM_SSRC_TRACKING] = {0};
 	unsigned int u;
 
 	// validate input